What is the equation of this graph?
A. y = 2x + 7
B. y = -2x + 7
C. y = -2/7x + 7
D. y = -7/2x + 7
E. y = -7/2x+ 2
Answers
Answer:
The equation would be Y= -7/2x + 7
Step-by-step explanation:
With the points given (0,7) and (2,0) we find our slope which is: -7/2. We know that our change in the y values is -7 and the change in our x values is +2. Y IS ALWAYS OVER X SO WE GET -7/2.
To find our y intercept you just look at the graph of where there's a point on the y line. For example (0,7) the 7 would be our y intercept.
So we get Y= -7/2x +7
The slope is ALWAYS put next to the variable x.
Hope this helps! :)
(Side Note: You look at the graph from left to right, so our first point would be (0,7)!)
Answer:
D. y= -7/2x +7
Step-by-step explanation:
From the graph we see that (0,7) is a point in which our line intersects on the y axis meaning that it will be our y intercept. Thus eliminating option E.
Next, we know that this graph is moving towards the left side of the graph meaning that the values will turn negative and thus meaning that the graph is decreasing, so our slope will be negative.
We know that slope is Rise/run. In thsi case, the graph doesn't have an even run of 2x or -2x because it doesn't intersect directly at those points. This eliminates A and B.
We are now left with Options C and D. Said before, 2 is our run in this graph because when observing the graph, we see that the point (2,0) is lowered by 7 and moved to the right 2. Meaning that 7 is our rise in this case and 2 would be our Run. But because it is negative pur slope is -7/2x.
Which eliminates C. Thus leaving option D as our answer
Related Questions
In the month of June, the temperature in Johannesburg, South Africa, varies over the day in a periodic way that can be modeled approximately by a trigonometric function. The lowest temperature is usually around 3^\circ C3 ∘ C3, degrees, C, and the highest temperature is around 18^\circ C18 ∘ C18, degrees, C. The temperature is typically halfway between the daily high and daily low at both 10\text{ a.M.}10 a.M.10, start text, space, a, point, m, point, end text and 10\text{ p.M.}10 p.M.10, start text, space, p, point, m, point, end text, and the highest temperatures are in the afternoon.
Answers
Answer:
The answer is "[tex]\bold{T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5}[/tex]"
Step-by-step explanation:
Given value:
Temp-maximum=[tex]18^{\circ}[/tex]
Temp. minimum = [tex]3^{\circ}[/tex]
It is halfway between 10 am and 10 pm to 4 am.
The sinus and cosine roles could be used throughout the year to predict fluctuations in climate models. Its type of formula that can be used to model such information is:
[tex]T = A \cos B(t-C) + D,[/tex] where parameters are A, B , C, D, T is the ° C temperature and t is the time (1-24)
[tex]A = amplitude = \frac{(T_{max} - T_{min})}{2}\\\\[/tex]
[tex]= \frac{(3 - 18)}{2}\\\\= - \frac{15}{2}\\\\ = -7.5[/tex]
[tex]B = \frac{2 \pi}{24}\\\\[/tex]
[tex]= \frac{\pi}{12}[/tex]
[tex]C = \text{ units translated to the right}= 4[/tex]
[tex]D = y_{min} + amplitude = units \ translated \ up\\\\[/tex]
D = 7.5 + 3 = 10.5
Its trigonometric function equation that model temperature T hours after midnight in Johannesburg t.
[tex]T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5[/tex]
Answer:
Hope this helps.
Step-by-step explanation:
-1/4x + 6 = y; (2,4)
Answers
Answer:
The answer is y = 4 x − 4
Step-by-step explanation:
Find the equation of the line in slope-intercept form. c Slope is 3/5 and (0, −2)
Answers
Answer:
y=3/5x-2
Step-by-step explanation:
The slope is already given, 3/5 so just plug it in to the base formula y=mx+b
And the coordinate (0,-2) is your y-intercept. So plug in -2 to b
Therefore y=3/5x-2
What’s -4•3-6•5
And the dot is multiplication!
Answers
Answer:
-42
Step-by-step explanation:
I put it in a calculator
Answer:
-42
Step-by-step explanation:
the answer should use PEMDAS so it is -42
What is a number with exactly 2 factors and what is a number with more than 2 factors
Answers
idk if this helped but lmk if it didn’t
Help please timed homework. 50 points
Answers
Answer:
I mean that's quite an interesting question
Please answer this, i really need it its my last question
Answers
Answer:
y=-4 to 4
x=-1 to -7
Step-by-step explanation:
Factor the expression completely. -21x^3+3x
Answers
Answer:
The answer is -3x(7x^2 - 1)
POSSIBLE POINTS: 3
You go to the football game, and admission is $5 and it costs $1 per snack.
The slope is
The y-intercept is
If you have $12, you can go to the game and buy snacks
1
2
3
Next
c)
Answers
Answer:
4 snack
Step-by-step explanation:
12 - 5 = 4
Evaluate 2x2 + 4 if x = 2
Answers
Answer:
x = 12
Step-by-step explanation:
insert 2 into the equation where x is.
2(2)2 + 4
so this is 2 * 2 * 2 + 4 = 12
I got a few 1000 more lol :')
Answers
Answer:
92
Step-by-step explanation:
Start with the first sentence. 7 crates of 12 eggs each and you need to find out how many eggs that is; that's just 12 + 12 + 12 + 12 + 12 + 12 + 12, or 12 * 7, which equals 84.
Real question is: how many do they have now? Well, if they had 8 eggs at first and they just bought 84 more, then the answer is just 8 plus the 84 that they just bought, which is 92.
Please mark as Brainliest! :)
Answer:
Your correct answer is that they now have 76 eggs left.
Step-by-step :
So, to start off, they had 7 boxes with each box with 12 eggs. So multiply 7 by 12.
7 x 12 = 84
Now, they ate 8 eggs.
84 - 8 = 76 eggs
Simplify to a single power of 4:
4^7/4^6
Answers
Step-by-step explanation:
[tex] \frac{ {4}^{7} }{ {4}^{6} } [/tex]
= 4
.......
The product of two consecutive integers is 19 less than their sum.
What equation represents the statement above?
Answers
Answer:
is there any choices?
Step-by-step explanation:
the cost (in dollars)of making u cell phones is represented by C=20u+61. How many cell phones are made when the cost is $481
Answers
Answer:
U=21
Step-by-step explanation:
What they are asking for is U. They tell you that the cost is 481 so the C is 481
481=20u+61
You minus 61 from 481 which is 420.
420=20u
Then you divide 20 from 420 and you will get 21.
Jenny is picking apples to make apple pie. The amount of
apples that she needs to pick varies directly with the
number of pies she plans to bake. If Jenny needs to make 12
apple pies, she will need to pick 42 apples. How many apples
would she need to pick if she was only making 8 pies?
Answers
Please help. I dont know how to do this
Answers
Answer:
y=3x+3
Step-by-step explanation:
3 is the slope, up 3 and right 1
3 is the y intercept
Please HELP! I’ll give BRAINLIEST :)
An undefined term is a term that has been given no formal definition. In geometry, there are three undefined terms that form the basis for the subject. What are those three undefined terms? Do your best to define those terms.
Answers
Answer:
Point, Line, and Plane
Step-by-step explanation:
The three undefined terms that form the basis for the subject are a point, a line, and a plane. A point is basically like a dot, which most people should know. A line is a straight one dimensional figure that extends to infinity in both directions. A plane a flat 2 dimension figure, that extends to infinity in all directions. You can think of a plane as infinite lines put next to each other.
You can visualize a point, a line, and a plane in a coordinate grid. A point on the coordinate grid is any point, from (0, 0), the origin, to (2039, pi). A line on the coordinate grid is linear. It can be of any equation from y=x to y=238490/239x + 123. You can think of a plane as the entire coordinate grid.
The soccer field at a park is 9,000 square yards. The soccer field takes up 6 2/5 square inches on the map of the park. How many square yards does 1 square inch on the map represent? Show your work. Help me pls
Answers
Answer: 1406.25
Step-by-step explanation:
The soccer field at a park is 9,000 square yards. The soccer field takes up 6 2/5 square inches on the map of the park. How many square yards does 1 square inch on the map represent? Show your work. Help me pls
Given that:
Area of soccer field = 9000 sq yards
Soccer field takes up 6 2/5 square inches on the map of park
Hence,
9000 yd² = 6 2/5 in²
Let 1 in² on map = m
9000 yd² = 32/5 in² - - - (1)
m = 1 in² - - - (2)
Cross multiply ;
6.4 * m = 9000
m = 9000/6.4
m = 1406.25
Hence,
1 in² on map = 1406.25 feet²
900
the digit 5 in 357 represents 1 tenth as much as the digit 5 in 465
Answers
Answer:
True
Step-by-step explanation:
You must use the decimal places and place values
Jay walks 3 blocks north and then 4 blocks east from his home if he walks straight back home how far does Jay walk-in all?
Answers
Answer:
he walked 7 block's
Jay walks 3 blocks north and then 4 blocks east from his home if he walks straight back home, 5 blocks does Jay walk-in all
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
Given,
Jay walks 3 blocks north and then 4 blocks east from his home if he walks straight back home.
We have to use pythagorean theorem in finding distance
As given in the attachment, Let AB= 3
BC=4
AC=x
To find AC we use pythagorean theorem
AC²=AB²+BC²
AC²=3²+4²
AC²=9+16
AC²=25
Take square root on both sides.
AC=5
Hence 5 blocks he walks straight back home how far does Jay walk-in all
To learn more on trigonometry click:
https://brainly.com/question/25122835
#SPJ2
bruh please help i’ve been trying to do this for two days and i can’t figure it out :// pls help lol i’m struggling
Answers
Answers:
x = 13
y = 24
=========================================================
Explanation:
Refer to the diagram below.
The triangle has interior angles (7x-31), 63, and some unknown angle, which we'll call z. This angle z is congruent to (5x-8) as the angles are alternate interior angles.
Alternate interior angles are congruent when we have parallel lines like this.
So z = 5x-8
Add up the three angles inside the triangle, set the sum equal to 180, and solve for x
(angle1)+(angle2)+(angle3) = 180
(7x-31)+63+(5x-8) = 180
12x+24 = 180
12x = 180-24
12x = 156
x = 156/12
x = 13
--------------------------
The angle z mentioned earlier is adjacent to the (4y+27) angle. These two angles form a straight line. They are considered a linear pair. This means they are supplementary (they add to 180)
z+(4y+27) = 180
(5x-8)+(4y+27) = 180
5x + 4y + 19 = 180
5(13) + 4y + 19 = 180
65 + 4y + 19 + 180
4y + 84 = 180
4y = 180-84
4y = 96
y = 96/4
y = 24
y= 21
sorry if someone already answered i just felt really proud !
In which pair of figures can Figure A be taken to Figure B by a rotatio
Answers
Answer:
Step-by-step explanation:
I don’t think you added a picture
Erin has $14 dollars to buy 7 lunches for the week. Write and solve an inequality that
represents the prices she can pay per lunch.
Answers
Answer:
7x [tex]\leq[/tex] $14 ; x[tex]\leq[/tex] 2
Step-by-step explanation:
Where x represents the number of lunches
Please Help Me ASAP!!!
Answers
Everything you need is in the picture attached.
what's the answer to 2x^2 x= 10
Answers
Answer:
1
Step-by-step explanation:
What type of angle is this??
Please help! I’ll give brainliest!!
Answers
Answer:
Same-side interior angle
Step-by-step explanation:
add up to 180 degree
Answer:
Acute angle
Correct me if wrong but that's what I know
Least Common Multiple of 9 and 45
Answers
Answer: 45
Step-by-step explanation:
3x3x5
In a student survey, forty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Please round your answers to 4 decimal places.
# of Courses Frequency Relative Frequency Cumulative Frequency
1 11 ? 11
2 ? 0.425 28
3 12 0.3 ?
What percent of students take exactly two courses?
%
Answers
Answer:
42.5%
Step-by-step explanation:
First we have to complete the table. We know that there are forty part time students so sum(f)=n=40. So, for two courses frequency is 40-11-12=17.
The relative frequency is the proportion of respective frequency and the sum of frequency. So, the missing relative frequency for 1st course is 11/40=0.275.
The missing relative frequency can also be computed as by subtracting given relative frequencies from 1 as sum of relative frequencies is 1. So, 1-0.425-0.3=0.275.
The cumulative frequency of respective class is the sum of frequency of previous classes and frequency of respective class. The missing cumulative frequency is 11+17+12 or 28+12= 40.
So, the complete table is
# of Courses Frequency Relative Frequency Cumulative Frequency
1 11 0.275 11
2 17 0.425 28
3 12 0.3 40
The percent of students takes exactly two courses=0.425*100=42.5%
Write the prime factorization of the number.
1: 42
2: 50
3: 66
Answers
50: 2 x 5 x 5 or 2 x 5^2
66: 2 x 3 x 11
Two species of birds are being compared. Species A can fly 18.9 miles in 42 minutes, while species B can fly 20.3 miles in 58 minutes. Which species is slower, and at what speed can it fly?
Answers
Answer:
all i know is species A is faster, but i dont really feel like seeing witch one goes how much slower or faster
Step-by-step explanation:
ok so if you use the unit speed, you should get a higher one for species A.
