Explain a graph please :)!

I know this might seem very elementary, but I am having trouble understanding why looks like this https://www.desmos.com/calculator/lzcondzabk

To my understanding the Xs should cancel out and we should get a new equation disregarding the original. What am I missing here?

Thank you!

Re: Explain a graph please :)!

Quote:

Originally Posted by

**sakonpure6** I know this might seem very elementary, but I am having trouble understanding why

looks like this

https://www.desmos.com/calculator/lzcondzabk
To my understanding the Xs should cancel out and we should get a new equation disregarding the original. What am I missing here?

Thank you!

Recall that |x| = x for x > 0 and |x| = -x for x < 0.

So what is |x| / x for x > 0 and for x < 0?

-Dan

Re: Explain a graph please :)!

Oh I see, when x>0 f(x) = 1 and when x<0 f(x) = -1

Re: Explain a graph please :)!

Quote:

Originally Posted by

**sakonpure6** Oh I see, when x>0 f(x) = 1 and when x<0 f(x) = -1

Yup! :)

-Dan