Answer:
f(4)=-2
Step-by-step explanation:
f(4)=-4+2=-2
The state should charge rain tax for businesses that cause most environmental damage due to runoff from their paved areas
The answer is x=-2
As you could see, this is a factored function.
The un-factored version is x^2+4x-12
-b/2a=x
-4/2=-2= x of vertex
4 and 7