Rational Inequality
x²+x-6
SO
x² – 3x - 4
1. Put the rational inequality in general
form.
R(x)
> 0
Q(x)
where >can be replaced by <S
and 2
2. Write the inequality into a single
rational expression on the left side.
(You can refer to the review section
for solving unlike denominators)
3. Set the numerator and denominator
equal to zero and solve. The values
you get are called critical values.
4. Plot the critical values on a number
line, breaking the number line into
intervals.
5. Substitute critical values to the
inequality to determine if the​