Question

PLEASE HELP!! if f(x)= 2x^2-11, find f(4)

Answer 1

Answer: f(4) = 21

Explanation:

2(4)^2-11

4^2 = 16

2(16)-11

Multiply 2 and 16

32 - 11

Subtract

21

Answer 2

21

Explanation:

f(x)= 2x^2-11

Let x= 4

f(4)= 2*4^2-11

= 2 * 16 - 11

= 32 -11

21