1. Do Now Entrance Ticket

2. 8) (1, 6)10) (29, 53) 12) (1, 1)14) Infinitely many 15) Infinitely many16) No solution 18) (0, 1) 24) a) South American and Caribbean, Y=0.8x+40.3 Middle East, y=1.8x+17 b) In 23.3 yr (about 23 yr and 4 mo) 26) a) y=65x+10 y=69x+13.60 d) No solution because the intersection does not occur in the first quadrant. 28) 25 girls and 35 boys 31) An equation containing a variable with a coefficient of 1 can easily be solved for the variable. That expression can then be substituted into the second equation for the variable.

3. 6.1 – 6.2 Review Session

4. Problem #1 Two lines are graphed on the same coordinate plane. The lines only intersect at the point (3, 6). Which of these systems of linear equations could represent the two lines?

5. #1 A, E

6. Problem #2 Indicate whether the system of equations has no solution, one solution, or infinitely many solutions by selecting the correct response.

7. #2 Infinitely many solutions

8. Problem #3 Indicate whether the system of equations has no solution, one solution, or infinitely many solutions by selecting the correct response.

9. #3 One solution

10. Problem #4 A system of equations is shown. hat is the solution (x, y) of the system of equations?

11. #4 (10, -2)

12. Problem #5 Graph to find the solution.

13. #5 (6, -1)

14. Problem #6 Solve the system of linear equations.

15. #6 (8, 11)

16. Problem #7 Use substitution to solve the system of equations.

17. #7 (3, -2)

18. Problem #8 The length of a rectangle is three times the width. The sum of the length and the width is 24 inches. What is the length of the rectangle?

19. #8

20. Problem #9 Solve.

21. #9 (0, 0)

22. Problem #10 Find the solution.

23. #10 (2, -5)

24. HW Pg. 361 #3-13 ALL