Question

Determine a equaçao da reta(dado um ponto e o coeficiente angular):c)pelo pontoC(3,-5) e tem coeficiente angular m=-2

Answer 1

A(3,-5) e m = -2

y - ya = m ( x - xa )

y + 5 = -2 ( x - 3 )

y + 5 = -2x + 6

y = -2x + 6 - 5

y = -2x + 1

2x + y - 1 = 0