9.1-9.4 Quiz

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| By Mrsmosher
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Mrsmosher
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Quizzes Created: 16 | Total Attempts: 21,766
| Attempts: 194
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  • 1/10 Questions
    What are the zeros of the function graphed below? - ProProfs

    What are the zeros of the function graphed below?

    • -1 and 0
    • -2 and 0
    • 0 and 1
    • 0 and 2
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9.1-9.4 Quiz - Quiz
About This Quiz

This quiz assesses understanding of quadratic functions, focusing on identifying quadratic functions, determining parabola vertices, and identifying zeros. It is relevant for learners aiming to enhance their algebra skills, particularly in solving and graphing quadratic equations.

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  • 2. 
    What is the vertex of the parabola graphed below?    - ProProfs

    What is the vertex of the parabola graphed below?   

    • (-3,0)

    • (-4,-1)

    • (1,0)

    • (-1,-4)

    Correct Answer
    A. (-1,-4)
    Explanation
    The vertex of a parabola is the point where the parabola reaches its minimum or maximum value. In this case, the vertex is given as (-1,-4), which means the parabola is at its lowest point at x = -1 and y = -4.

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  • 3. 

    Which is a quadratic function?

    Correct Answer
    A.
    Explanation
    A quadratic function is a function that can be written in the form f(x) = ax^2 + bx + c, where a, b, and c are constants and a is not equal to 0. Quadratic functions have a degree of 2 and their graphs form a parabola. Therefore, the correct answer is any function that can be expressed in this form.

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  • 4. 
     and . Which statement is true? - ProProfs

     and . Which statement is true?

    • G(x) is wider than f(x)

    • G(x) is narrower than f(x)

    • G(x) and f(x) have the same vertex

    • G(x) and f(x) have different axes of symmetry

    Correct Answer
    A. G(x) is narrower than f(x)
  • 5. 
    What function is shown on the graph below? - ProProfs

    What function is shown on the graph below?

    Correct Answer
    A.
  • 6. 
    What is the vertex of the graph of ? - ProProfs

    What is the vertex of the graph of ?

    • (2, 5)

    • (-2, -27)

    • (-2, 5)

    • (4, -11)

    Correct Answer
    A. (2, 5)
    Explanation
    The vertex of a graph represents the highest or lowest point on the graph. In this case, the vertex is given as (2, 5), which means that the highest or lowest point on the graph is at the coordinates (2, 5).

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  • 7. 
    The height in feet of a rocket launched  from the ground can be modeled by the  function , where x is the time in seconds after it is launched.  What is the rocket’s maximum height? - ProProfs

    The height in feet of a rocket launched  from the ground can be modeled by the  function , where x is the time in seconds after it is launched.  What is the rocket’s maximum height?

    • 144 feet

    • 240 feet

    • 288 feet

    • 432 feet

    Correct Answer
    A. 144 feet
    Explanation
    The rocket's maximum height is 144 feet because it is stated in the answer section. However, without additional information or the actual function, it is not possible to determine the rocket's maximum height based solely on the given question.

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  • 8. 
    Which function has a vertex different  from the vertex of the graph of  - ProProfs

    Which function has a vertex different  from the vertex of the graph of 

    Correct Answer
    A.
  • 9. 

    Which function has a graph that opens downward?

    Correct Answer
    A.
    Explanation
    The function that has a graph that opens downward is a quadratic function with a negative leading coefficient. In a quadratic function, the highest power of the variable is 2, and the leading coefficient determines the direction of the graph. When the leading coefficient is negative, the graph opens downward, forming a concave shape.

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  • 10. 

    Which function's graph has an axis of symmetry of x=2?

    Correct Answer
    A.
    Explanation
    The function that has a graph with an axis of symmetry of x=2 is a quadratic function in the form of f(x) = (x - 2)^2. The axis of symmetry of a quadratic function is the vertical line that passes through the vertex of the parabola. In this case, the vertex is at (2, 0) which means the axis of symmetry is x=2.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 05, 2013
    Quiz Created by
    Mrsmosher
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