Question

Dadas as retas: r: y = 3x - 1 e s: y = -1/3 x +2 podemos afirmar que: a) as retas r e s são paralelas b) as retas r e s são são concorrentes c) as retas r e s são perpendiculares d) as retas r e s são reversas

Answer 1

c) as retas r e s são perpendiculares