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Ninth Grade (Grade 9) Quadratic Equations Questions

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Grade 9 Quadratic Equations CCSS: HSA-REI.A.1
[math]x+2x^2-3=-5x+x^2-12[/math] is equivalent to
  1. [math]x=0[/math]
  2. [math]x=-3[/math]
  3. [math]x^2=-9[/math]
  4. [math]x=6[/math]
Grade 9 Quadratic Equations CCSS: HSA-APR.A.1
Solve for [math]x[/math].
[math]3x^2-4=8[/math]
  1. x = 1
  2. x = 12
  3. x = 4
  4. x = 2
  5. x = 3
Grade 9 Quadratic Equations
Solve for x.
[math]8x^2=968[/math]
  1. x=11
  2. x=121
  3. x=968
  4. x=14641
  5. x=0
Grade 9 Quadratic Equations CCSS: HSA-REI.A.1
[math]x+2x^2-3=4x+x^2+2[/math] is equivalent to ...
  1. [math]3x^2-x+5=0[/math]
  2. [math]x^2-3x=5[/math]
  3. [math]x^2-5=-3x[/math]
  4. [math]x^2+5=3x[/math]
Grade 9 Quadratic Equations CCSS: HSA-REI.A.1
[math]1/2x-x^2=4-2x[/math] is equivalent to
  1. [math]2 1/2x-4=x^2[/math]
  2. [math]x^2=4x-5/2[/math]
  3. [math]x^2-4=2 1/2x[/math]
  4. [math]x^2=2 1/2x+4[/math]
Grade 9 Quadratic Equations CCSS: HSF-IF.B.5
Which equation represents the graph below?
Graph - Quadratic Function y=2x^2
  1. [math]y = 2x[/math]
  2. [math]y = 2x^2[/math]
  3. [math]y = - 2x[/math]
  4. [math]y = - 2x^2[/math]
Grade 9 Quadratic Equations
Expand and simplify
[math](x- 5 ) (x + 6)[/math]
  1. [math]x^2 - 1x + 30[/math]
  2. [math]x^2 +11 x - 30[/math]
  3. [math]x^2 + x - 30[/math]
  4. [math]x^2 - 11x -30[/math]
Grade 9 Quadratic Equations
Factor the expression.
[math]x^2 - 10 x + 16[/math]
  1. [math]( x - 8) (x - 2)[/math]
  2. [math](x -4 ) (x - 4)[/math]
  3. [math](x - 8) (x +2)[/math]
  4. [math](x + 8 ) (x - 2)[/math]
Grade 9 Quadratic Equations CCSS: HSA-REI.A.1
[math]2x-x^2=4-2x-x^2[/math] is equivalent to
  1. [math]x=1/2[/math]
  2. [math]x=2[/math]
  3. [math]x=1[/math]
  4. [math]x^2=2[/math]
Grade 9 Quadratic Equations
Which expression has only one solution?
  1. [math]x^2 - x - 20[/math]
  2. [math]x^2 + 10x + 7[/math]
  3. [math]x^2 - 12x + 36[/math]
  4. [math]x^2 + 13x + 42 [/math]
Grade 9 Quadratic Equations CCSS: HSA-REI.B.4
Grade 9 Quadratic Equations CCSS: HSF-LE.A.1
Which of the following is NOT a quadratic equation?
  1. [math]x^2 - 4 = 0[/math]
  2. [math]-9 + x^2 = 0[/math]
  3. [math]-7x + 12 = 0[/math]
  4. [math]-2 + 9x + x^2 = 0[/math]
Grade 9 Quadratic Equations CCSS: HSF-IF.C.8a
If you complete the square for [math]x^2-10x=14[/math], what will the factored quadratic be?
  1. [math](x-5)^2=39[/math]
  2. [math](x-5)^2=114[/math]
  3. [math](x+5)^2=114[/math]
  4. [math](x+5)^2=39[/math]
Grade 9 Quadratic Equations
Which expression is equivalent to [math](2x+3)(x-1)[/math]
  1. [math]2x^2+x-3[/math]
  2. [math]2x^2+x+3[/math]
  3. [math]2x^2+3x+3[/math]
  4. [math]2x^2+3x-3[/math]
Grade 9 Quadratic Equations CCSS: HSA-REI.B.4
What are the solutions of [math] x^2 -3x - 40[/math]?
  1. -5 and -8
  2. -5 and 8
  3. 5 and -8
  4. 5 and 8
Grade 9 Quadratic Equations CCSS: HSF-IF.B.4
Which function has a y-intercept of 4?
  1. [math]y = 2x^2 + 1[/math]
  2. [math]y = 2x^2 + 4x[/math]
  3. [math]y = 2x^2 - 4[/math]
  4. [math]y = 2x^2 + 4[/math]
Grade 9 Quadratic Equations
Grade 9 Quadratic Equations
Which equation represents the graph of the parabola?
Graph - Quadratic Function y=-x^2
  1. [math]y = - x[/math]
  2. [math]y = x[/math]
  3. [math]y = -x^2[/math]
  4. [math]y = x^2[/math]
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