Question

Which statement is true about the graft function?

Answer 1

Last option

`F(x) > 0` over the interval (-∞, -4)

Explanation:

Note that from -∞ to -4 the function F has a positive value, the graph is above the x-axis. So the first statement is false and the last is true.

`F(x)> 0` over the interval (-∞, -4)

Then, from
`x = -4` the function F is negative.
`(F(x) <0)`. But for
`x <-4`,
`F(x)> 0`.

Therefore the second and third statements are false.

The only true statement is the last option