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Eighth Grade (Grade 8) Functions Questions

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Grade 8 Functions CCSS: 8.F.A.1
Which of the following relations is also a function?
  1. {(2,4), (3,5), (2,7)}
  2. {(3,5), (4,6), (3,7)}
  3. {(-2,1), (-2,3), (6,5)}
  4. {(10,0), (2,4), (-2,6)}
Grade 8 Functions CCSS: 8.F.A.1
Which sets of ordered pairs represent functions?
  1. {(4,6) (5,7) (6,8) (7,9)}
  2. {(1,8) (2,8) (3,8) (4,8) (5,8)}
  3. {(2,4) (2,7) (6,4) (12,10) (15,5)}
  4. {(3,5) (3,9) (3,11) (3,15)}
Grade 8 Functions CCSS: 8.F.A.2, 8.F.B.4
Grade 8 Functions CCSS: 8.F.A.2, 8.F.B.4
Grade 8 Functions CCSS: 8.EE.C.7a
Solve the following equation:
2(-3x+5)-12=9x-3(5x+4)
  1. Infinitely Many solutions
  2. x=1
  3. x=0
  4. No Solution
Grade 8 Functions CCSS: 8.F.A.3
Is this graph linear?
Graph - Linear Function y=-2x
  1. Yes
  2. No
  3. Not enough information
  4. Sometimes
Grade 8 Functions CCSS: 8.F.A.2
Grade 8 Functions CCSS: 8.F.A.3
Is this graph linear?
Graph - Quadratic Function y=-1/2x^2
  1. Yes
  2. No
  3. Not enough information
  4. Sometimes
Grade 8 Functions CCSS: 8.F.A.3
Is this graph linear?
Graph - Linear Function y=-1/2x
  1. Yes
  2. No
  3. Not enough information
  4. Sometimes
Grade 8 Functions CCSS: 8.F.A.1
This is a function.
Graph - Quadratic Function y=2x^2
  1. True
  2. False
  3. Sometimes
  4. Not enough information
Grade 8 Functions CCSS: 8.F.A.3
Is this graph linear?
Graph - Linear Function y=x
  1. Yes
  2. No
  3. Not enough information
  4. Sometimes
Grade 8 Functions CCSS: 8.F.A.3
Is this graph linear?
Cos 4X
  1. Yes
  2. No
  3. Not enough information
  4. Sometimes
Grade 8 Functions CCSS: 8.F.A.2
Grade 8 Functions CCSS: 8.F.A.3, 8.F.B.5
The equation [math]y=-2x^2+2[/math] is
  1. Linear
  2. Nonlinear
  3. Not a function
  4. Both B and C
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