Answer: Down
If on the other hand a > 0, then the parabola would open upward.
C) because the 7 and x right next to each other represents multiplication. so it's:
7x=91
7X(Allison's money)=91
X=2
y=149
————-
Solve 8x+15=7x+17
alternate angles are equal
x=2
Substitute 2 in 8x+15 =31
180-31=149
y=149
Angles on a straight line add up to 180
It would be C. im pretty sure. hope that helps you
