The Language of Parabolas: Vocabulary and Graph Analysis

Which term names the highest or lowest point on a parabola?

• Vertex

• Axis of symmetry

• Roots or zeros

• Y-intercept

What does the axis of symmetry do for a parabola?

• Divides the graph into symmetric halves

• Lists all possible input values

• Shows where the graph crosses y-axis

• Marks the highest or lowest output

On a labeled parabola diagram, identify which feature corresponds to the point where the graph crosses the x-axis.

• Roots or zeros

• Vertex point

• Axis of symmetry

• Range values

• x = 2 and x = 4

• x = −2 and x = −4

• x = 6 and x = 8

• x = −6 and x = 8

• y = −3

• y = 3

• y = 4

• y = −4

The graph of a quadratic function opens upward and has its vertex at (2, -7). Which statement about its minimum or maximum is correct?

• It has a maximum value of -7 at x = 2

• It has a minimum value of -7 at x = 2

• It has a maximum value at x-intercepts

• It has no minimum or maximum value

For a parabola with vertex at (2, -7), what is the equation of its axis of symmetry?

• y = -7

• x = -7

• x = 2

• y = 2

A parabola shown on a coordinate grid crosses the x-axis at x = -1 and x = 5. How many zeros does the function have, and what are they?

• One zero at x = 2

• Two zeros at x = -1 and x = 5

• Three zeros at x = -1, 2, and 5

• No real zeros

• t = 1 second

• t = 2 seconds

• t = 3 seconds

• t = 4 seconds

• 48 feet

• 56 feet

• 64 feet

• 80 feet