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Quadratic Equations Questions - All Grades

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Grade 9 Quadratic Equations
Grade 9 Quadratic Equations
Grade 9 Quadratic Equations
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
Factor:
[math]x^2-81[/math]
  1. (x+9)(x-9)
  2. (x+9)(x+9)
  3. (x-9)(x-9)
  4. Unfactorable
Grade 9 Quadratic Equations
Solve:
[math]2x^2-4x-3=0[/math]
  1. [math]x=1+-2sqrt10[/math]
  2. [math]x=2+-sqrt10[/math]
  3. [math]x=(2+-sqrt10)/2[/math]
  4. [math]x=(2+-sqrt2)/2[/math]
Grade 9 Quadratic Equations
Which equation represents the graph of the parabola?
Graph - Quadratic Function y=1/2x^2
  1. [math]y = 1/2x[/math]
  2. [math]y =-1/2x[/math]
  3. [math]y = 1/2x^2[/math]
  4. [math]y=-1/2x^2[/math]
Grade 10 Quadratic Equations CCSS: HSA-CED.A.4
Solve for [math]r[/math].

[math]a=v^2/r[/math]
  1. [math]r=a/v^2[/math]
  2. [math]r=v^2a[/math]
  3. [math]r=v^2/a[/math]
  4. [math]r=sqrt(v)/a[/math]
Grade 10 Quadratic Equations CCSS: HSA-REI.B.4
Factor the expression.
[math]9x^2 + 24x +16[/math]
  1. [math](x + 4)(9x - 1)[/math]
  2. [math](3x + 16)(3x + 1)[/math]
  3. [math](3x + 4)^2[/math]
  4. [math](3x + 8)^2[/math]
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
If two equations are equal what does that mean?
  1. There is no solution
  2. There are infinite solution
  3. There are one solution
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 10 Quadratic Equations
Factor the expression.
[math]9x^2 + 24x +16[/math]
  1. [math](x +4)(9x - 1)[/math]
  2. [math](3x + 16)(3x + 1)[/math]
  3. [math](3x + 4)^2[/math]
  4. [math](3x + 8)^2[/math]
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: 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
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
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 10 Quadratic Equations CCSS: HSA-CED.A.4
Solve for [math]a[/math].

[math]a^2+b^2=c^2[/math]
  1. [math]a=sqrt(c^2/b^2)[/math]
  2. [math]a=sqrt(b^2-c^2)[/math]
  3. [math]a=sqrt(c^2+b^2)[/math]
  4. [math]a=sqrt(c^2-b^2)[/math]
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