Question

Indique a equação da reta representada no plano cartesiano:

Answer 1

Coeficiente angular da reta
m = (y2 – y1) / (x2 – x1)
m = 4 – 0 / 0 – 2
m = 4 / -2
m = –2

y – y1 = m (x – x1).
y – 0 = –2 (x -2)
y –0 = –2x +4
y – 0 + 2x - 4 = 0
y + 2x – 4 = 0
2x + y – 4 = 0