Question 90397
<pre><font size = 4><b>
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Graph: f(x) = <font face = "symbol">Ö</font>x + 2.
Can you help me? Thank you so much!

Get some points.  Since the domain is [-2,oo)
choose points starting with -2 and larger values
which are 2 less than a perfect square, although
you can substitute any value in that domain and
plot the decimal val;ue.

 x   f(x)
----------
-2 |  0
-1 |  1
 2 }  2
 7 |  3
14 |  4

Plot them:

{{{drawing(400,133.33333,-3,15,-1,5,

graph(400,133.33333, -3,15, -1, 5),

locate(-2-.2,0+.4,o), locate(-1-.2,1+.4,o), locate(2-.2,2+.4,o), locate(7-.2,3+.4,o), locate(14-.2,4+.4,o) )}}} 

Now connect them with a smooth curve:

{{{drawing(400,133.33333,-3,15,-1,5,

graph(400,133.33333, -3,15, -1, 5, sqrt(x+2)),

locate(-2-.2,0+.4,o), locate(-1-.2,1+.4,o), locate(2-.2,2+.4,o), locate(7-.2,3+.4,o), locate(14-.2,4+.4,o) )}}}

Edwin</pre>