Question

Which of the following are a linear function?f(x) = 2x-5g(x) = x^2+3h(x) = -x+4

Answer 1

A linear function is a function where there's no x, or x has a power of one.

This way, the linear functions would be:

$\begin{gathered} f(x)=2x-5 \\ h(x)=-x+4 \end{gathered}$