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Ninth Grade (Grade 9) Quadratic Equations and Expressions Questions

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Grade 9 Quadratic Equations and Expressions
Grade 9 Quadratic Equations and Expressions
Subtract. [math] (7a^2 - 3a) - (5a^2 - 5a)[/math]
  1. [math] 2a^2 - 8a[/math]
  2. [math] 2a^2 + 2a[/math]
  3. [math] 4[/math]
  4. [math]12a^2 - 8a [/math]
Grade 9 Quadratic Equations and Expressions
Grade 9 Quadratic Equations and Expressions
Solve the equation [math]x^2-2x-35=0[/math].
  1. x=-7 and x=5
  2. x=-7 and x=-5
  3. x=7 and x=-5
  4. x=7 and x=5
Grade 9 Quadratic Equations and Expressions
Grade 9 Quadratic Equations and Expressions
Solve using the quadratic formula:
[math]4x^2 = 9[/math]
  1. [math]x = pm 3/2[/math]
  2. [math]x = 2/3[/math]
  3. [math]x = pm 2/3 [/math]
  4. [math]x = -3/2[/math]
Grade 9 Quadratic Equations and Expressions
Grade 9 Quadratic Equations and Expressions
Factor. [math]9m^2 -16[/math]
  1. [math](3m-4)(3m-2)[/math]
  2. [math](3m-8)(3m+2)[/math]
  3. [math](3m-4)(3m+4)[/math]
  4. [math](3m-4)(3m-4)[/math]
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4b
What are the x-intercepts of the graph of [math]-x^2 +3x - 2 = 0 ?[/math]
  1. x = -1, x = -2
  2. x = 1, x = 2
  3. x = 1, x = -2
  4. x = -1, x = 2
Grade 9 Quadratic Equations and Expressions
Factor the expression. [math]a^2-12a + 36[/math]
  1. [math](a-6)(a-6)[/math]
  2. [math](12a + 1)(-2a + 6)[/math]
  3. [math](a + 6)(a + 6)[/math]
  4. [math](a - 12)(a + 6)[/math]
Grade 9 Quadratic Equations and Expressions
Grade 9 Quadratic Equations and Expressions
Grade 9 Quadratic Equations and Expressions
Grade 9 Quadratic Equations and Expressions
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.A.1
Simplify as much as possible [math]x+2x^2-3=-5x+x^2-12[/math]
  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 and Expressions
The best definition for vertex is
  1. the roots
  2. the zeros
  3. the highest or lowest point of a parabola
  4. the y-intercept
Grade 9 Quadratic Equations and Expressions
If [math]6x^2 = 3/32, x = [/math]
  1. [math]-1/2, 1/2[/math]
  2. [math]-1/4, 1/4[/math]
  3. [math]-1/8, 1/8[/math]
  4. [math]-1/16, 1/16[/math]
Grade 9 Quadratic Equations and Expressions
Factor.
[math]x^2 - 2x -24[/math]
  1. [math](x+6)(x-4)[/math]
  2. [math](x-6)(x-4)[/math]
  3. [math](x-6)(x+4)[/math]
  4. [math](x+6)(x+4)[/math]
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