## Algebra 1: Common Core (15th Edition)

We first find the slope of line p. The equation for slope is: $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$. Thus, we find: $\frac{7-(-4)}{2-5}=\frac{-11}{3}$ Recall, slopes of perpendicular lines are the opposite reciprocal of the slope of the original line, so we know that the slope of the perpendicular line is 3/11.