Solving Quadratics
3 years ago
kschneidere116
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20 QuestionsShow answers
  • Question 1
    120 seconds
    Q. What is the discriminant?
    answer choices
    b²-4ac
    b2/2a
    4ac
    b2±4ac
  • Question 2
    120 seconds
    Q. If the discriminant is negative, then the quadratic has:
    answer choices
    1 Real Solution
    2 Real Solutions
    Half a Solution
    No Real Solutions
  • Question 3
    120 seconds
    Q. If the discriminant equals 0, then the quadratic has:
    answer choices
    1 Real Solution
    2 Real Solutions
    Half a Solution
    No Real Solution
  • Question 4
    120 seconds
    Q. If the discriminant is positive, then the quadratic has:
    answer choices
    1 Real Solution
    2 Real Solutions
    Half a Solution
    No Real Solution
  • Question 5
    120 seconds
    Q. What is this?
    answer choices
    This is the speed of light formula.
    This is the quadratic formula.
    This is the zero product property.
    This is scary.
  • Question 6
    120 seconds
    Q. What should you do first in solving this equation?
    x2 + 6x - 13 = 3
    answer choices
    Get factored form
    Write down: a=1, b=6, c=-13
    Make it equal 0 by subtracting 3 on each side
    Type it all in a calculator.
  • Question 7
    300 seconds
    Q.
    answer choices
    √3
    ±√3
    -3
    No real solution
  • Question 8
    300 seconds
    Q.
    answer choices
    ±81
    ±9
    ±3
    No real solution
  • Question 9
    300 seconds
    Q.
    answer choices
    -4, 2
    -2, 4
    -16
    -4
  • Question 10
    300 seconds
    Q.
    answer choices
    -2, 4
    -8
    ±8
    No real solution
  • Question 11
    300 seconds
    Q.
    answer choices
    ±1.5
    1.5
    ±1
    No real solution
  • Question 12
    300 seconds
    Q. If the graph of a quadratic does not intercept the x axis at any point, then it has:
    answer choices
    1 Real Solution
    2 Real Solutions
    Half a Solution
    No Real Solution
  • Question 13
    300 seconds
    Q. Convert x2-6x+9 to factored form and identify the solution.
    answer choices
    (x-3)(x-3); x=3
    (x+3)(x+3); x=-3
    (x+4)(x+2); x=-4, -2
    Not factorable
  • Question 14
    300 seconds
    Q. Solve     4x2 + 12x + 11 = 0
    answer choices
    -2.2 or -0.8
    -2 or -1
    2 or 1
    No Solution
  • Question 15
    300 seconds
    Q. Solve    2x2 + 7x - 15 = 0
    answer choices
    -1.5 or 5
    No Solution
    -5 or 1.5
    0.7 or 5
  • Question 16
    300 seconds
    Q. Find the zeros of this quadratic.
    answer choices
    b=4/5, b=3
    b=4, b=-3
    b=1/5, b=3
    b=4/5, b=-3
  • Question 17
    300 seconds
    Q. Find the zeros.
    answer choices
    0 and 4
    0 and -4
    0
    -4
  • Question 18
    300 seconds
    Q. Determine the values of
    a, b, and c for
    the quadratic equation: 
    4x2 – 8x = 3
    answer choices
    a = 4, b = -8, c = 3
    a = 4, b =-8, c =-3
    a = 4, b = 8, c = 3
    a = 4, b = 8, c = -3
  • Question 19
    300 seconds
    Q. Suzie solves the equation below:
    x2 + 4x - 12 = 2
    (x - 2)(x + 6) = 2, 
    by setting x -2 = 0 and x + 6 = 0. 
    Her solutions are x = 2 and x = -6.
    Is Suzie correct? Why or why not?
    answer choices
    Yes, she factored correctly and then used the zero product property
    Yes, she factored correctly and then square rooted.
    No, she did factor correctly, but she can't use the zero product property as shown.
    No, she didn't factor correctly so the rest of her work is wrong. 
  • Question 20
    300 seconds
    Q. Solve by factoring.
    -4y2 + 24y - 36 = 0
    answer choices
    -3
    7/2
    4
    3
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