Respuesta :

The given function is

[tex]f(x)=3x+2[/tex]

A . f(4) means we have to evaluate the function when x = 4.

[tex]f(4)=3(4)+2=12+2=14[/tex]

Therefore, f(4) = 14.

B. f(x) = 50 means we have to evaluate the function when y = 50.-

[tex]\begin{gathered} 50=3x+2 \\ 50-2=3x \\ x=\frac{48}{3} \\ x=16 \end{gathered}[/tex]

Therefore, f(16) = 50.

C. f(-5) means we have to evaluate the function when x = -5.

[tex]f(-5)=3(-5)+2=-15+2=-13[/tex]

Therefore, f(-5) = -13.

D. f(x) = -34.

[tex]\begin{gathered} -34=3x+2 \\ -34-2=3x \\ x=\frac{-36}{3} \\ x=-12 \end{gathered}[/tex]

Therefore f(-12) = -34.

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