### Home > GB8I > Chapter 8 Unit 9 > Lesson INT1: 8.1.3 > Problem 8-43

8-43.

Mary says she can find the *‑*intercept of the equation

*, while Michelle says she needs to substitute*

*.*

Who, if anyone, is correct and why?

One way to view this is graphically: the

-intercept lies anywhere along the-axis.Michelle is correct. The

-intercept always has a-coordinate ofbecause it lies on the -axis.Use the correct approach to determine the

intercept.‑ Substitute

for and then solve for.