Inequality
< 0x 1 (x 2)(x + 3)
Rational Inequality
Critical Numbers: the zeros, and the values that make the inequality undefined.
1. Place critical numbers on a number line
10 2 3 4 5 6 7 8 9 1012345678910
Solve: >_ 0x2 2x 8
x 1
10 2 3 4 5 6 7 8 9 1012345678910
>x
x 3
1
x + 2
10 2 3 4 5 6 7 8 9 1012345678910
Absolute Value Inequality
Graph y = x Graph y = x
Graph y = x + 5 What will graph of y = x + 5 look like?
x 2 <_ 5
x 2 <_ 5Solve algebraically
x2
1+ <_ 3
x2
1+ <_ 3Solve algebraically
Exercise 28
questions 6 12