3-R Ans Key

*Must show work to receive credit

1. x=5, x=-2

2. x= 4/7, x= -4/7

3. x=0, x= 3

4. x=3, x=-3

5. x= -3√11

6. x= 5 ±√5

7. x= -3± √41 / 2

8. x= -5± √5 / 2

9. x= -1/3, x= 3

10. v: (-4, -3) and graph

11. v: (1, -6) and graph

12. $20; 40.8

13. y= x^2 -8x+5

Last modified: Wednesday, 9 November 2016, 12:23 PM