Question

Find the value for the function.Find f(4) when f(x) = x2 + 3x - 2.

Answer 1

$\begin{gathered} \text{Given function} \\ f(x)=x^2+3x-2 \\ \text{Substitute value, }x=4, \\ f(x)=x^2+3x-2 \\ f(4)=(4)^2+3(4)-2 \\ f(4)=16+12-2 \\ f(4)=26 \end{gathered}$