Question

If f(x) = 5 + 4x^2, then f(3) =

Answer 1

f(3) = 41

Explanation:

f(3) = 5 + 4.3^2 = 5 + 36 = 41

Answer 2

Good evening

Answer:

41

Explanation:

If f(x) = 5 + 4x²

in order to calculate f(3) we just substitute x by 3 in the expression above

f(3) = 5 + 4(3)²

= 5 + 4(9)

= 5 + 36

= 41

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