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Home > CCA > Chapter 3 > Lesson 3.2.3 > Problem 3-62


What is the equation of the line that has a y-intercept of (0, −3) and passes through the point (−9, −9)? 3-62 HW eTool (Desmos). Homework Help ✎

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Use the two points to find the rise and the run. Then divide the rise by the run. That will give you the slope.

Substitute the slope for m in the equation below. Then substitute the y-coordinate of the y-intercept for b.

y = mx + b