1. Key Concepts for Sect. 5.5
*The Zero Product Property:
If ab = 0, then a = 0 or b = 0.

2. Guided Practice for Sect. 5.5
Ex 1: Find the x-intercepts (zeros/roots) of each function.
a) y = x2 - 10x - 24

3. Ex 1:
b) y = x2 + 8x + 15

4. Ex 1:
c) y = x2 - 7x + 12

5. Guided Practice for Sect 5.5
Ex 2: Find the zeros (x-intercepts/roots) of each function.
a) y = 3x2 - 20x - 7

6. Ex 2:
b) y = 2x2 + 4x - 6

7. On Your Own
Find the zeros (roots/x-intercepts) of each function.
a) y = 2x2 - 11x + 15
b) y = 6x2 + 13x + 6

8. Answers:
1) (2.5, 0) and (3, 0)
2) (-1.5, 0) and (-2/3, 0)

9. Guided Practice for Sect. 5.5
Ex 3: Solve each equation.
a) 16x2 = 8x

10. Ex 3:
b) 6x2 = 486

11. Ex 3:
c) 3x2 + 27x = 0

12. On Your Own
Find the zeros (roots/x-intercepts) of the function.
1) y = 5x

13. Answer:
1) (-6, 0) and (6, 0)