Mary says that you can find an x-intercept by substituting 0 for x, while Michelle says that you need to substitute 0 for y. Homework Help ✎
Who, if anyone, is correct and why?
Use the correct approach to find the x-intercept of −4x + 5y = 16.
One way to view this is graphically: the x-intercept lies any wherealong the x-axis.
Michelle is correct. The x-intercept always has a y-coordinate of 0 because it lies on the x-axis.
Substitute 0 for y and then solve for x.