1. If f(x) = 3x + 5 solve the x when f(x) = 11 2. What is the value of f(16) when f(x) = 4x - 8

Answer:
(a)x=2
(b)f(16)=56
Explanation:
Part A
Given the function f(x) defined as follows:
[tex]f\mleft(x\mright)=3x+5[/tex]When f(x)=11, we have:
[tex]11=3x+5[/tex]We solve for x.
[tex]\begin{gathered} 11-5=3x \\ 6=3x \\ x=\frac{6}{3} \\ x=2 \end{gathered}[/tex]Part B
Given the function f(x) defined as follows:
[tex]f\mleft(x\mright)=4x-8[/tex]When x=16
[tex]\begin{gathered} f\mleft(16\mright)=4(16)-8 \\ =64-8 \\ =56 \end{gathered}[/tex]