4. What are the intersection points of the line whose equation is y=-2x +1 and the circle whose equation is x? +(y+1) =
=16?

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°

well what did you do it matters what you did : )

step-by-step explanation:

you need to add a picture