Question

Determine a equação da reta que intercepta os pontos P(1,4) e Q(2,2)

Answer 1

A(1,4) e B(2,2)

m = ( yb - ya ) / ( xb - xa ) = ( 2 - 4 ) / ( 2 - 1 ) = -2/1 = -2

y - ya = m ( x - xa )

y - 4 = -2 ( x - 1 )

y = -2x + 2 + 4

2x + y - 6 = 0