Question

Is `y = 2x^4 + 9x + 17` a quadratic function?

Answer 1

No

Explanation:

It is a function of fourth power in x.

Answer 2

No, it's called a quartic.

Explanation:

Quadratic sounds like something to do with `4` - the order of the highest term here, but it's about squares i.e. the highest order term would be `ax^2` for some constant `a`.

The graphs of quartics can look like quadratics too, a symmetrical sort of U shape, but they can also have a sort of W shape.