Say you have f(x) = x

so it looks like this /

if you do f(|x|)... will it make it look like V or <

THANKS

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- Dec 7th 2006, 06:21 PMMr_Greengraphs absolute
Say you have f(x) = x

so it looks like this /

if you do f(|x|)... will it make it look like V or <

THANKS - Dec 7th 2006, 06:24 PMAfterShock
- Dec 7th 2006, 06:40 PMThePerfectHacker
IT cannot look like <

Because otherwise it is not a function (vertical line test). - Dec 7th 2006, 07:13 PMRuichan
Just reflect all the -xs about the x axis and you'll get V

- Dec 8th 2006, 04:36 AMtopsquark
- Dec 8th 2006, 05:15 AMSoroban
Hello, Mr_Green!

Quote:

Say you have $\displaystyle f(x) = x$

so it looks like this: /

If you do $\displaystyle f(|x|)$ . . . will it make it look like $\displaystyle \lor$ or $\displaystyle <$ ?

Since we have $\displaystyle f(x) = |x|$, the graph is symmetric to the y-axis: .$\displaystyle \lor$

Baby-talk: "Anything that happens on the right will also happen on the left"