Question

For x = 4 the function f(x) = x2 + bx+c has the minimum value of -9. Find C.
A
8
B
7
D
8​

Answer 1

Step-by-step explanation:

The minimum value of ax2 + bx + c is 7/8 at x = 5/4. Find the value of the expression at x = 5, if the value of the expression