Answer:
2 feet of soil
Step-by-step explanation:
if you set b and a to the same number it would be equal to 2
THE answer is 3.173≅3.2(nearest tenth)
as x intercepts are -8 and 72 we realize that f(x)=a(x+8)(x-72)
we know that f(62)=-490 so a= -0.7
so f(x)= -0.7(x+8)(x-72)
