Question

A equação da reta que passa pelos pontos (2,-2) e (-2,2)

Answer 1

A(2,-2) e B(-2,2)

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

y - ya = m ( x - xa )

y + 2 = -1 ( x - 2 )

y + 2 = -x + 2

y = -x + 2 - 2

y = -x

x + y = 0