Question

desuon 28 OT 40 Let A x) = 7x- 4 What is (6)? O A. 38 ООО OB. 42 C. 48 O D. 46

Answer 1

f(x) is given by the expression

$f(x)=7x-4$

Then, to evaluate f(6), substitute x for 6 in the expression above

$\begin{gathered} f(6)=7(6)-4=42-4=38 \\ \Rightarrow f(6)=38 \end{gathered}$

The answer is 38, option A