Question

For which intervals is the function negative

Select each correct answer

(1,4)

(-3,1)

(-2.5,2.5)

(4,infinity)

(-infinity, -3)

(-1.5, 4.2)

Answer 1

(1,4)

(-infinity, -3)

Explanation:

Answer 2

`(1,4)`

`(- \infty ,-3)`

EXPLANATION

The x-values for which the graph is below the x-values below the x-axis is the interval on which the graph is negative.

We can see from the graph that, for

`x < - 3`

the function is negative.

This can be rewritten as:

`(- \infty ,-3)`

Also for

`1 < x < 4`

the function is again negative.

This is also written as:

`(1,4)`