C = 6.5h
for 2 hrs...so we sub in 2 for h...for francesca
c = 6.5(2)
c = 13
for 6 hrs...so we sub in 6 for h...for phil
c = 6.5(6)
c = 39
so Phil pays (39 - 13) = 26 more <=
Answer:3aC +bC
Step-by-step explanation:
Step-by-step explanation:
First, find the vertex. The x coordinate is -b/2a, or 12/-4=-3. Plug this back in to get -18+36-21 or -3, so the vertex is (-3, -3). Now, slowly make the x -2, -1, 0, 1, on and on. Because parabolas are symmetric along the vertex, they will have the same values as -4, -5, -6, on and on.
