# curve

• June 9th 2008, 03:09 AM
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.
• June 9th 2008, 03:13 AM
Moo
Hello,

Quote:

$\frac{x^2-9}{x^2-6x+5}=0 \Longleftrightarrow x^2-9=0$