Question 881407
Simplify. identify the restrictions on the domain. 
6x^2+x-12
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3x^2+14x-24 
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{{{(6x^2+x-12)/(3x^2+14x-24)}}}
{{{(3x-4)(2x+3)/((3x-4)(x+6))}}}
(3x-4) cancels out, leaving a "hole" in the curve at x=4/3
{{{(2x+3)/(x+6)}}}
set denominator=0
x+6=0
x=-6
at x=-6, denominator=0. Given expression is undefined so it is a restriction.
at x=4/3, given expression is not defined