Question 1078668
<font size=4><pre><b>
Rule:

If the ordered pair (a, b) is contained in a function F,
then F(a) = b

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(f&#8728;g)(3) means {{{f("g(3)"^"")}}}

Now since the ordered pair (3, 2) is contained in function g,
we know that g(3) = 2.

So (f&#8728;g)(3) {{{""=""}}}{{{f("g(3)"^"")}}}{{{""=""}}}{{{f(2^"")}}}

Now since the ordered pair (2, 3) is contained in function f,

we know that {{{f(2^"")}}}{{{""=""}}}{{{3}}}

So altogether

 (f&#8728;g)(3) {{{""=""}}}{{{f("g(3)"^"")}}}{{{""=""}}}{{{f(2^"")}}}{{{""=""}}}{{{3}}}

Edwin</pre></b></font>