Answer
L1 = $-2$
L2 = $-1$
L3 = -$\frac{2}{3}$
Work Step by Step
Since slope is $\frac{rise}{run}$, we can find slope by doing $\frac{y2-y1}{x2-x1}$.
The two given points for L1 are (-1, 4) and (2, -2). If we plug these points into the formula, we get $\frac{-2 -4}{2--1}$. This simplifies to $\frac{-6}{3}$, or $-2$.
The two given points for L2 are (-8, 6) and (-4, 2). If we plug these points into the formula, we get $\frac{2-6}{-4--8}$. This simplifies to $\frac{-4}{4}$, or -1.
The two given points for L3 are (-6, 0) and (0, -4). If we plug these points into the formula, we get $\frac{-4-0}{0--6}$. This simplifies to $\frac{-4}{6}$, or -$\frac{2}{3}$.