At those two x-intercepts, I know that x=2 and x=-2.
to get this, I know that there are two factors set to 0.
x+2=0 and x-2=0
so, if you multiply (x+2)(x-2)=y
then you will have standard form
x^2+2x-2x-4=y
y=x^2-4
Answer:
The answer to the question provided is $7.01
Winston needs at least 80 signatures. Let 
be the number of signatures Winston manages to obtain. Then 
.
He and 2 of his friends obtain 
number of signatures.
Then 
.
Or, the required inequality is
Correct choice is (C).
4×10-9×10=-50
-5×10-5×20-36×10-36×20=-870
