Which pair oflines represent graphs that are perpendicular? A) y = -3x + 7 y = -3x + 2 B) y = 5x + 5 y = 10x + 5 C) 2y = 4x – 16 y = 2x – 8 D) y = 9 x = 5 E) y = x y = 3

step-by-step explanation:

i hate black

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°