CHHS Algebra 2 Unit 2 Corrections

Solve each system by elimination: -12x - 10y = 8 -4x - 3y = 6

• (-10, 3)

• (-9, -10)

• (-9, 10)

• (-10, -3)

Solve each system by elimination: -4x + y = -15 -5x - 9y = -29

• (4, 1)

• (-10, 1)

• (3, -9)

• (-9, 3)

Solve each system by elimination: -x - 4y = 15 10x + 12y = -10

• (5, -5)

• (-10, -7)

• (-7, -10)

• (7, -10)

Solve each system by substitution: 5x - 8y = 5 -x + y = 2

• (6, -7)

• (-7, -5)

• (-5, -7)

• (7, -6)

Solve each system by substitution: x + 5y = 24 3x + 3y = 24

• (-4, 7)

• (7, 4)

• (4, 4)

• (4, 7)

Solve each system by substitution: 6x + y = -8 7x + 3y = -24

• (-8, 0)

• No solution

• (8, 0)

• (0, -8)

Sketch the solution to the system of inequalities:

3x + 2y > 2

x - 2y ≥ 6

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Sketch the solution to the system of inequalities:

2x + 3y ≤ -3

2x + y ≤ 3

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Which graph represents the solution to the system of inequalities?

x + 2y ≤ 2

2x + y ≥ -2

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Gabriella and Stephanie are selling pies for a school fundraiser. Customers can buy cherry pies and blackberry pies. Gabriella sold 4 cherry pies and 3 blackberry pies for a total of $77. Stephanie sold 8 cherry pies and 3 blackberry pies for a total of $109. Find the cost each of one cherry pie and one blackberry pie.

• cherry pie: $5, blackberry pie: $6

• cherry pie: $10, blackberry pie: $19

• cherry pie: $8, blackberry pie: $15

• cherry pie: $11, blackberry pie: $6