how to add sqrt2+x and sqrt2-x together?
Thanks

Question

how to add sqrt2+x and sqrt2-x together?
Thanks

anonymous · Answer

$$\sqrt{2+x} and \sqrt{2-x}$$

mertsj · Answer

Can't add them.  The radicands are not the same.

anonymous · Answer

then how am i supposed to graph it. because the question ask to graph the first, then the second one, then the graph of both of them adding together :[

mertsj · Answer

That would be by adding the graphs together.

anonymous · Answer

hmm, then i don't know how.

mertsj · Answer

Did you graph the two equations?

anonymous · Answer

i know how to graph the two, but I don't know how to make the third graph

mertsj · Answer

ok.  Here is an example.  If you graph
$$y=\sqrt{x+2}$$
it will contain the point (2,2)
if you graph
$$y=\sqrt{x-2}$$
it will contain the point (2,0)
So the sum function will contain the point (2, 2+0)

anonymous · Answer

im still confused how did they have the answer

anonymous · Answer

I want to know how to graph if there is no calculator allowed

mertsj · Answer

Plot some ordered pairs.