Question

What is the solution set of y = x2 + 2x + 7 and y = x + 7?

A. {(0, 7), (-1, 6)}
B. {(0, 7), (-7, 0)}
C. {(0, 7), (1, 8)}
D. {(-2, 0), (4, 0)}

Answer 1

any idea?

Answer 2

i think its A

Answer 3

Is that x^2?

Answer 4

yes

Answer 5

soltion is the point where two equations have a common point.
or
both equations are equal.
solving
\[x^2+2x+7=x+7\]
or
\[x^2+2x+7-x-7=0\]
\[x^2+x=0\]
\[x(x+1)=0\]
x=?

Answer 6

Just put both equations into a graphing calculator and find where the intersect, that's the answers