Do Now Entrance Ticket

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 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.

6.1 – 6.2 Review Session

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?

#1 A, E

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

#2 Infinitely many solutions

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

#3 One solution

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

#4 (10, -2)

Problem #5 Graph to find the solution.

#5 (6, -1)

Problem #6 Solve the system of linear equations.

#6 (8, 11)

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

#7 (3, -2)

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?

#8

Problem #9 Solve.

#9 (0, 0)

Problem #10 Find the solution.

#10 (2, -5)

HW Pg. 361 #3-13 ALL