Quadratic Graphs And Equations

15 Questions | Total Attempts: 355

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Quadratic Equation Quizzes & Trivia

Questions and Answers
  • 1. 
    Solve. 8x2 + 10x + 3 = 0
    • A. 

      X = -8 and -4

    • B. 

      X = -2 and -6

    • C. 

      X = -1.5 and -0.167

    • D. 

      X = -0.75 and -0.5

  • 2. 
    Use the discriminant to find the number of real solutions. 2x2 + 5x + 7 = 0
    • A. 

      0

    • B. 

      1

    • C. 

      2

  • 3. 
    Solve. 1x2 + 12x + 32 = 0
    • A. 

      X = -8 and -4

    • B. 

      X = -2 and -6

    • C. 

      X = -1.5 and -0.167

    • D. 

      X = -0.75 and -0.5

  • 4. 
    Solve. 16x2 + 20x  = 0
    • A. 

      X = 0 and 1.25

    • B. 

      X = 0 and -5

    • C. 

      X = 0 and -1.25

    • D. 

      X = -1.25

  • 5. 
    Solve. x2 - 100 = 0
    • A. 

      X =10

    • B. 

      X = 50

    • C. 

      X = 50 and -50

    • D. 

      X = 10 and -10

  • 6. 
    Solve. x2 - 3x - 2 = 0
    • A. 

      X =10 and -7

    • B. 

      X is approximately 3.56 and -0.56

    • C. 

      X is approximately 5.06 and -0.94

    • D. 

      No real solutions

  • 7. 
    Which best describes the graph of a quadratic function?
    • A. 

      A line.

    • B. 

      A parabola

    • C. 

      A v-shape.

    • D. 

      A circle

  • 8. 
    How do you change the concavity of the graph of a quadratic function written in standard form?
    • A. 

      Change the value of a to its opposite.

    • B. 

      Change the value of b to its opposite.

    • C. 

      Change the value of c to its opposite.

    • D. 

      Take the square root of both sides.

  • 9. 
    Subtracting 7 from y=x2+2x will move the graph how?
    • A. 

      Left 7.

    • B. 

      Right 7.

    • C. 

      Up 7.

    • D. 

      Down 7.

    • E. 

      None of these.

  • 10. 
    To make the graph y=x2+4x+7  grow faster (more narrow)  I could do the following:
    • A. 

      Change a to 1/2.

    • B. 

      Change a to -1.

    • C. 

      Change a to 3.

    • D. 

      Change c to 10.

  • 11. 
    Can the graph of a quadratic function ever have three x-intercepts?
    • A. 

      Yes.

    • B. 

      No.

  • 12. 
    Quadratic functions have a line of symmetry.  True or False?
    • A. 

      True.

    • B. 

      False.

  • 13. 
    The graph of  y=x2 has a
    • A. 

      Maximum

    • B. 

      Minimum

  • 14. 
    Find the roots of y  = x2 + 2x - 24
    • A. 

      (0,6) and (0,-4)

    • B. 

      (6,0) and (-4,0)

    • C. 

      (0,-6) and (0,4)

    • D. 

      (-6,0) and (4,0)

  • 15. 
    Identify the vertex of y = 2x2 + 12x + 3 
    • A. 

      (-3, -15)

    • B. 

      (-3, -51)

    • C. 

      (-6, 3)

    • D. 

      (-6, -141)