Ch. 7 Review.

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Presentation transcript:

Ch. 7 Review

100pts Is the ordered pair a solution to the linear equation? 2x – y = 7 X + y = 2 (5,3)

100pts Is the ordered pair a solution to the linear equation? 4x + 3y = 8 3x + y = 0 (-1, 4)

Graph the linear system and identify the solution X + y = 6 X – y = 12 200pts Graph the linear system and identify the solution X + y = 6 X – y = 12

200pts Graph the linear system and identify the solution 4x – y = 3 3x + y = 4

Solve by using substitution X + 3y = 9 4x – 2y = -6 3oopts Solve by using substitution X + 3y = 9 4x – 2y = -6

Solve by using substitution 3x + 2y = 11 X – 2 = -4y 3oopts Solve by using substitution 3x + 2y = 11 X – 2 = -4y

Solve using linear combinations 3x – 2y = 1 4y = 7 + 3x 3oopts Solve using linear combinations 3x – 2y = 1 4y = 7 + 3x

Solve using linear combinations 2a – 4b = 6 7 + a = -3b 3oopts Solve using linear combinations 2a – 4b = 6 7 + a = -3b

300pts Solve using the method of your choice. Tell how many solutions the system has. If the system has one solution, find the solution. 1/3x + y = 2 2x + 6y = 12

300pts Solve using the method of your choice. Tell how many solutions the system has. If the system has one solution, find the solution. 2x – 3y = 1 -2x + y = 13

300pts Solve using the method of your choice. Tell how many solutions the system has. If the system has one solution, find the solution. -6x + 5y = 18 7x + 2y = 26

4oopts You have 50 tickets to ride the Ferris wheel and the roller coaster. If you ride 12 times, using 3 tickets for each Ferris wheel ride and 5 tickets for each roller coaster ride, how many times did you go on each ride?

400pts You spend $13 to rent five movies for the weekend. Since new releases rent for $3 and regular movies rent for $2, how many regular movies and new releases did you rent?

400pts Jason bought a total of 7 postcards for $1.80. If the small postcards cost $.20 and the large ones cost $.30 each, how many of each size did he buy?

400pts Phil has 50 nickels and dimes worth $4.15. How many dimes does he have?

400pts The perimeter of a rectangle is 920 meters. Find it’s dimensions if the length is 60 more than the width.

Graph the system of linear inequalities. X > -5 Y<-2 300pts Graph the system of linear inequalities. X > -5 Y<-2

300pts Graph the system of linear inequalities. 2x – 10y > 8 X – 5y < 12

Graph the system of linear inequalities. 9x ≥ 27 -x + 3y ≤ 15 300pts Graph the system of linear inequalities. 9x ≥ 27 -x + 3y ≤ 15

Bonus Question Study!!! Prize: +3 for test and candy Category: Write a linear inequality

Write a system of linear inequalities that defines the shaded region below.