Question

Given f(x) = x^2 + 3 , work out the value of f(4)

Answer 1

f(4) = 19

Explanation:

f(x) = x^2 + 3

plug in 4 for the xs

f(4) = 4^2 + 3

f(4) = 16 + 3

f(4) = 19

Answer 2

Answer: 19

Explanation:

`f(4)=(4)^2+3=16+3=19`