Question

If g(x)= x to the second power + 3, find g(4).

A. 11
B. 19
C. 16
D. 8

Answer 1

@WoahItsJian can you help?

Answer 2

Replace every x with 4
\[\Large g(x) = x^2 + 3\]
\[\Large g(x) = (x)^2 + 3\]
\[\Large g(\color{red}{x}) = (\color{red}{x})^2 + 3\]
\[\Large g(\color{red}{4}) = (\color{red}{4})^2 + 3\]
\[\Large g(\color{red}{4}) = ??\]
I'll let you compute the result

Answer 3

Is it 19?

Answer 4

yep it's 19