Key Features of Quadratic Functions

The graph of a quadratic function is shown on the grid. Which statement appears to be true?

• The vertex of the function is (9, 2).

• The y-intercept of the function is (8, 0).

• The maximum value of the function is 8.

• The equation of the axis of symmetry is x = 2.

The graph of a quadratic function is shown. Which values best represent the zeros of the function?

• x = -3

• x = -1

• x = -4

• x = 1

• x = 3

A part of quadratic function g is graph on the grid. What is the domain of the part of the function shown?

• All real numbers greater than or equal to -4 and less than or equal to 5.

• All real numbers greater than or equal to -6 and less than or equal to 6.

• All real numbers greater than or equal to -2 and less than or equal to 3.

• All real numbers greater than or equal to -1 and less than or equal to 3.

Two characteristics of quadratic function k are given.

The axis of symmetry of the graph of k is x = -3.

Function k has exactly one zero.

Based on this information, which graph could represent k?

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A graph of a quadratic function is shown on the grid. Which coordinates best represent the vertex of the graph?

• (0, -3)

• (-1, -4)

• (-3, 0)

• (1, 0)

The graph of quadratic function f is shown on the grid. What is the maximum value of f?

A quadratic function is graphed on the grid. Which answer choice best represents the domain and range of the function?