Question

What are the features of the quadratic function graphed in the figure?

A)
Vertex = (0, -1), y-intercept = (0,-3), x-intercepts = (0,-3) and (0,3), axis of
symmetry is x = 0
B)
Vertex = (1,0), y-intercept = (0,-1), x-intercepts = (-3,0) and (3,0), axis of
symmetry is x = 1
Vertex = (-1,0), y-intercept = (0,-1), x-intercepts = (-3,0) and (3,0), axis of
symmetry is x = -1
D)
Vertex = (0,-1), y-intercept = (0,-1), x-intercepts = (-3,0) and (3,0), axis of
symmetry is x = 0

Answer 1

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Answer:

D) Vertex = (0,-1), y-intercept = (0,-1), x-intercepts = (-3,0) and (3,0), axis of symmetry is x = 0

Explanation:

The vertex is the y-intercept. Its coordinates are (0, -1).

The axis of symmetry is the vertical line through the vertex. Its equation is x=0.

These observations are sufficient for you to choose the correct answer (D).