Question

What is the primary difference between exponential and linear functions?

Answer 1

Answer:

A

Step-by-step explanation:

We know that the growth of a linear function will always be constant. So, that eliminates B and C.

A quadratic function can be a function such as $x^2$, or $5x^2+7x$, etc.

An exponential function wouldn't be $x^2$, it would be $2^x$! Or $3^x$, or $(1.738283)^x$, etc. Therefore, D is eliminated.

So, the answer is $\boxed{A}$ and we're done!