Question

Here you go the brainless

Answer 1

Use the same formular

$\boxed { m= { \frac{y_1 - y_2}{x_1 - x_2} } } \\ m= { \frac{0 - 1.5}{-3 - 0} } \\ m= { \frac{-1.5}{-3} } \\ m= { \frac{1}{2} }$