Question

calcule a equação da.reta com coeficiente angular m:-4/5 e.que passa pelo ponto p(2, -5).

Answer 1

m = -4/5
P (2 ;-5)

(y - y°) = m (x - x°)

$(y-(-5))= \dfrac{-4}{5} (x-2)\to\\\\\\ y+5= \dfrac{-4x+8}{5} \to~~mmc=5\\\\\\ 5y+25=-4x+8\to\\\\ 5y+4x+25-8=0\to\\\\ \large\boxed{5y+4x+17=0~~\to~~Geral}\\\\\\ \large\boxed{5y=-4x-17~~\to~~Reduzida}$