PLEASE HELP!!!

what is the vertex of the function y= -2|x| +1

Question

PLEASE HELP!!!

what is the vertex of the function y= -2|x| +1

anonymous · Answer

you have to graph it first silly!

anonymous · Answer

I don't know how to graph it with absolute value

directrix · Answer

@Juliasawyer You can see the graph at this link but I think we can figure out the vertex coordinates without the graph. http://www.wolframalpha.com/input/?i=y%3D+-2%7Cx%7C+%2B1

anonymous · Answer

Would it be (0,1) ?

directrix · Answer

I'm not sure yet.

directrix · Answer

We want to look for the value of x that makes the function have the largest value it can have.

directrix · Answer

A positive or negative value of x will produce a negative result for -2|x|.

directrix · Answer

But, x = 0 would make -2|x| = 0. Then, add one to get a functional value of 1.

So, yes, your answer of (0,1) is correct.