# How do you find the critical points for the inequality #(2x+1)/(x-9)>=0#?

##### 1 Answer

See the explanation.

#### Explanation:

I think the question wants the key numbers or the partition numbers.

These are the values of

The sign of a rational function MIGHT change when either the numerator is

For the expression

the sign MIGHT and does change at

at

In the graph of

graph{y=(2x+1)/(x-9) [-25.9, 39.05, -23.36, 9.1]}

To the left of