Question

Which of the following equations is linear? x^2+5=yy=x y=2^xy=1/3x

Answer 1

A linear function will only have variables with exponent 1, then, the following are linear functions:

`\begin{gathered} y=x \\ y=(1)/(3)x \end{gathered}`

while

`x^2+5=y`

is a quadratic function and

`y=2^x`

is an exponential function.