Question

Determine o coeficiente angular da reta r que contém os pontos A e B nos casos A(-1;-2) e (2;4)

Answer 1

$A~(-1;-2) ~~e~~B~ (2;4)\\\\\\\\ m= \dfrac{y_2-y_1}{x_2-x_1} \to~~ m= \dfrac{4-(-2)}{2-(-1)} \to~~ m= \dfrac{4+2}{2+1} \to~~ m= \dfrac{6}{3} \to\\\\\\ \large\boxed{m=2}$