# Question #7fd9c

Nov 9, 2017

A , B and C

#### Explanation:

For end behaviour of polynomials we only need be concerned with the degree and leading coefficient. So:

For A.

${\lim}_{x \to \infty} \left(10 {x}^{4}\right) = \infty$

For B.

${\lim}_{x \to \infty} \left(15 {x}^{3}\right) = \infty$

For C.

${\lim}_{x \to \infty} \left(10 {x}^{4}\right) = \infty$

For D.

${\lim}_{x \to \infty} \left(- 15 {x}^{3}\right) = - \infty$

So:

A , B and C all tend to $\infty$

D tends to $- \infty$