Answer:

Step-by-step explanation:
We are given zeros as x=-4, x=-2
so, we can set up function as

Vertex is at (-1,3)
It means that graph passes through point (-1,3)
so, we can plug x=-1 and f(x)=3
and then we can solve for 'a'

we get

now, we can plug it back
and we get

now, we can simplify it

Answer:
y=5x+10 or y=25 (i'm not sure what they're asking)
6x-10y+9
Step-by-step explanation:
(6x – 10y + 12) – 3
6x-10y+12-3
subtract 12-3
6x-10y+9
It wouldn’t be any of these I don’t think, however I don’t know what the # means.
I thought it would be C = 15 + x(0.20)
Hope this helps
You need to set up a linear graph. One side with gallons and the other with dollars. Point 1 will be at (1500, 2.10). Point 2 (1300, 2.95). Draw a straight line through these points in your graph and your graph will then give you the answers to your other questions.