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

2 Answers
Jul 26, 2015

No

Explanation:

It is a function of fourth power in x.

Jul 26, 2015

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.