Honors Precalculus

1
Honors Precalculus

• Day 7
• Section 3.6

2
1. Solve the inequality
(no calculator)

• is a parabola opening
  upward.
• It hits the x-axis when
• Call these your critical values.
• Our solution set is given by the set of x-values
  whose y-values are above zero.
• (outside the two zeros.)

3
2. Solve the inequality. (use your calculator)

• Graph
• Find critical values.
• Solution set will be when y1 is below the x-axis.

4
3. Solve the inequality (no
calculator).

• Use critical numbers to create regions.
• Critical numbers
• What cant x be?
• Solve the equation.
• Test 1 value in each region.

5
4. Solve the inequality
(use calculator).

• Graph
• Solution is the set of x-values whose y-values
  are above 0.
• Use calculator to find critical values.
• Need to know where the V.A. is.
• Need to use calc to find the zero.

6

• End

7
Honors Precalculus

• Day 7
• Section 3.6

8
1. Solve the inequality
(no calculator)
9
2. Solve the inequality. (use your calculator)
10
3. Solve the inequality (no
calculator).
11
4. Solve the inequality
(use calculator).