Question

Shaun's savings can be modeled by the regression equation y = 6x^2 + 75x+200. Which of the following is the best prediction for the amount he will have saved after 25 months?

A. $3,791
B. $4,754
C. $2,936
D. $5,825

Answer 1

D

Explanation:

The equation given gives y in terms of x, where y is Shaun's savings and x is the number of months.

We want to know the amount he will save in 25 months, so we can plug in x = 25 into the equation and get a value of y, that is the amount he will save. So:

`y = 6x^2 + 75x+200\\y = 6(25)^2 + 75(25)+200\\y=5825`

D is the correct answer.