Question

a equação da reta com coeficiente angular igual a $<var>\frac{-4}{5}</var>$ e que passa pelo ponto P (2,-5) é:

a) 4x + 5y + 12 = 0
b) 4x + 5y + 14 = 0
c) 4x + 5y + 17 = 0
d) 4x + 5y + 16 = 0
e) 4x + 5y + 15 = 0

Answer 1

a) 4x + 5y + 12 = 0 
b) 4x + 5y + 14 = 0
c) 4x + 5y + 17 = 0==> 4.2 + 5(-5) + 17 = 0 ==> 0 = 0
d) 4x + 5y + 16 = 0
e) 4x + 5y + 15 = 0