Answer:
y = 2x+7
Step-by-step explanation:
This is equation is in the form
y= mx+b where m is the slope and b is the y intercept
y =2x + ? means we are looking for the y intercept which is the value of y when x is zero
From the table, x=0 and y=7
y = 2x+7
The answer to the question is that the surface area is 48
As we do not know the other cars avg speed we can not tell the answer. Please repeat the question.
Given equation is y=2x+7 and ![\frac{1}{2}y=x+\frac{7}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dy%3Dx%2B%5Cfrac%7B7%7D%7B2%7D)
Let's simplify the 2nd equation
before we can start graph so that calculation will be easy
![\frac{1}{2}y=x+\frac{7}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dy%3Dx%2B%5Cfrac%7B7%7D%7B2%7D)
multiply both sides by 2 to cancel out fractions
![2*\frac{1}{2}y=2*x+2*\frac{7}{2}](https://tex.z-dn.net/?f=2%2A%5Cfrac%7B1%7D%7B2%7Dy%3D2%2Ax%2B2%2A%5Cfrac%7B7%7D%7B2%7D)
y=2x+7
which is exactly same as the first equatoin so graph of both will be exactly same and solution will be infinitely many solutions.
y=2x+7 has y-intercept 7 so first point will be (0,7). Slope is 2 so rise 2 unit up then 1 right and graph the new point.