I'm graphing equations, and I ran into a snag. I assumed that the graph would be the same for both of the following:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]y=x^2[/tex] and [tex]y=-x^2[/tex]

since any negative number squared is equal to it's absolute value squared.

However, the book showed equation 2 as having an inverted graph of equation 1.

So, I suppose my question is, when I come across [tex]-x^2[/tex] should I treat it like [tex]-(x^2)[/tex] or like [tex](-x)^2[/tex]? IOW, should [tex]-x[/tex] be treated as [tex] -1*x[/tex] or as a number in and of itself, like [tex]-2[/tex]?

Thanks.

[tex]\phi[/tex]

The Rev

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Negative X

**Physics Forums | Science Articles, Homework Help, Discussion**