Question

Chris found the equation of a trend line. The equation

is shown below. y= 3x + 10. If x is 5, what is the
predicted value of y?

Answer 1

y = 25

Explanation:

Substitute x = 5 into the equation for value of y

y = 3(5) + 10 = 15 + 10 = 25

Answer 2

The predicted value of y = 25

y = 3(5) + 10
= 15 + 10
= 25