As given by the question
There are given that the function
[tex]f(x)=3x+7[/tex]
Now,
for find, the value of f(-2), put x=-2 into the given function
So,
[tex]\begin{gathered} f(x)=3x+7 \\ f(-2)=3(-2)+7 \\ f(-2)=-6+7 \\ f(-2)=1 \end{gathered}[/tex]
Hence, the value of f(-2) is 1.
