The data in the table represent the fuel economy (mpg) for a car at different speeds (mph). According to the least squares regression equation, what is the approximate fuel economy for this vehicle at 65 mph?

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

ratio is 2 : 9

the answer is three

13.5 : 3

thats not a system of equations, that is a solution

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊