Question 988474
How do I "sketch the restricted function and state the domain and range in interval notation, of the following:"

f(x)=x^2
f(-2)=
Graph f(x) if x> -2
<pre>
It's a little confusing because it asks for f(-2) and then it says x > -2.
If x is greater than -2 then x cannot equal to -2.  However to then ask for
f(-2) is to ask "What is x^2 when x equals to -2?".  So x > -2 says that x
cannot be -2, and then f(-2) says it must be -2.  So I am confused.  If it
were not restricted then f(-2) would be (-2)^2 or 4.  But if it's restricted
then there can be no such thing as f(-2).   So the answer is either 4 or
"undefined".

Here is the graph restricted to x > 2.  Notice the open circle at its
endpoint:


{{{drawing(3200/11,400,-4,4,-2,9, circle(-2,4,.15), graph(3200/11,400,-4,4,-2,9,

x^2*sqrt(x+1.98)/sqrt(x+1.98) ) )}}}