Question

4. The slope of line k is –3. The points (-2, m) and (4, -3m) lie on the line k. Find the value of m.

Answer 1

The slope is m1 = -3

$\begin{gathered} m1=\frac{-3m-m}{4-(-2)} \\ \\ -3=\frac{-4m}{6} \\ \\ -18=-4m \\ \\ m=\frac{18}{4} \\ \\ m=4.5 \end{gathered}$

m is equal to 4.5