## Algebra: A Combined Approach (4th Edition)

The point-slope form is $y - y_1 = m(x-x_1)$ is in the point-slope form, where $m$ is the slope and $(x_1,y_1)$ is a point on the graph. $y - 7 = 4(x + 3)$ is in the point-slope form, with $m=4$ and $(x_1,y_1)=(-3,7)$.