## Intermediate Algebra (6th Edition)

True, $f(x)=10x-20$ is a possible function since $f(7)=50$.
Note that when x=7, $\\\\f(x)=10x-20 \\\\f(7)=10(7)-20=50$ Thus, $f(x)=10x-20$ is a possible function since $f(7)=50$.