Question

determine o coeficiente angular da reta que passa pelos pontos A (3,2)e B (-3,-1)

Answer 1

m = coef. angular =  Δy/Δx        

y1 = 2 ; y2 = -1

x1 = 3 ; x2 = -3

m = ( -1 - 2)/(-3 - 3)

m = -3/-6

m = 1/2