Answer:
f(-3) = 43
Explanation:
f(x) = 4x² + 7
To find f(-3) substitute the value of x that's - 3 into f (x) that's replace every x in f (x) by - 3
We have
f(-3) = 4(-3)² + 7
= 4(9) + 7
= 36 + 7
We have the final answer as
f(-3) = 43
Hope this helps you