# Math Help - curve

1. ## curve

(x^2 -9)/(x^2-6x+5)
How many times does this cross the x-axis?

Not sure what to do with this - any help or hints greatly appreciated. Thanks.

2. Hello,

(x^2 -9)/(x^2-6x+5)
How many times does this cross the x-axis?

Not sure what to do with this - any help or hints greatly appreciated. Thanks.
$\frac{x^2-9}{x^2-6x+5}=0 \Longleftrightarrow x^2-9=0$

Can you take it from here ?

Thanks a lot