CCSS.Math.Content.HSA.REI.C.6

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

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CCSS.Math.Content.HSA.REI.C.6

If a system of linear equations has infinitely many solutions, what does this mean about the two lines? 

• Intersecting lines
• Same line
• Parallel lines

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CCSS.Math.Content.HSA.REI.C.6

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (0, 1)

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CCSS.Math.Content.HSA.REI.C.6

Give the solution to the system.

• (3,1)
• (1,3)
• (-1,3)
• (1, -3)

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CCSS.Math.Content.HSA.REI.C.6

A theatre can hold 200 people. If the price of admission is $5 for an adult and $2 per child, find the number of each if the theatre is full and the profit is $577.

• 59 adults and 141 children
• 40 adults and 160 children
• 60 adults and 140 children
• 41 adults and 159 children

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CCSS.Math.Content.HSA.REI.C.6

Solve using any method:
2x+3y=10
-2x+y=14

• (6,-4)
• (-4,6)
• (4,6)
• (6,4)

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CCSS.Math.Content.HSA.REI.C.6

Solve the system by substitution.

−x + 5y = 12

y = −2x − 2

• (−2, −7)

• (−2, 2)

• (−2, −2)

• (2, −2)

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CCSS.Math.Content.HSA.REI.C.6

What is the solution to this system?
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

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CCSS.Math.Content.HSA.REI.C.6

Which equation is correctly using substitution for the system shown?

y = x + 6

y = -2x − 3

• x + 6 = -2x − 3

• y = x + 6 − 2x − 3

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CCSS.Math.Content.HSA.REI.C.6

3x + y = –14

–2x – y = 9

Which method would be best for solving this system?

• Substitution

• Elimination/Matrices

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CCSS.Math.Content.HSA.REI.C.6