1. Warm Up

2. L9-6 Obj: Students will solve rational equations

3. Solve = . Check each solution.
Solving Rational Equations
Solve = . Check each solution. 1
x – 3 6x
x 2 – 9

4. Solve

5. Solve

6. 3 5x 4 3x 1 3
Solve – = .

7. Solve

8. time to row 4 miles upstream = time to row 6 miles downstream
Josefina can row 4 miles upstream in a river in the same time it takes her to row 6 miles downstream. Her rate of rowing in still water is 2 miles per hour. Find the speed of the river current.
Relate: speed with the current = speed in still water + speed of the current,
speed against the current = speed in still water – speed of the current,
time to row 4 miles upstream = time to row 6 miles downstream
Define:
Distance (mi) Rate (mi/h) Time (h)
With current r
Against current – r 4
(2 – r ) 6
(2 + r )
Write: = 6
(2 + r ) 4
(2 – r )
Homework
L9-6 (p 532) #6-28e 40-44e 62-70e

9. Review
Solve for x
7x = 15

10. Review
Solve for x
log (2x – 1) = 2

11. Review
Solve for x
log (5x- 2) = 3

12. Review
Solve for x
112x = 37

13. Homework
L9-6 (p 532) #6-28e 40-44e 62-70e