Answer:
10a+4
Step-by-step explanation:
that's it
a = -4/9
(9a + 4) = 0
Subtract 4 from each side
9a + 4-4 = 0-4
9a = -4
Divide each side by 9
9a/9 = -4/9
Answer: F(x) = 5x^2 + 10x
plot a point at (0,-8) and another one at (5,-7)
connecting the dots would create the slope
