Quadratic Modeling

Whats the vertex and what does it mean?

• At 1.4 seconds the football is at a maximum height of 31 ft

• At 31 seconds the football is at a maximum height of 1.4 ft

• The ball is at its maximum height at 2.7 seconds

• The hits the ground at 1.4 seconds.

Which is the best estimate for when the football hits the ground?

• 0.5 seconds

• 4.0 seconds

• 1.5 seconds

• 2.7 seconds

Which best describes the HEIGHT of the football at 2 seconds?

• 10 feet

• 22 feet

• 6 feet

• 31 feet

What does the Y-INTERCEPT and what does it mean?

• The ball is thrown from an initial height of 1.4 feet.

• The ball reaches a maximum height of 6 feet.

• The ball hits the ground at 6 seconds.

• The ball is thrown form an initial height of 6 feet.

Write the equation in standard form of the parabola passing through the points in the given table.

What is the equation for axis of symmetry?

• y=3

• x=3

• x=5

• x=1

What do we call the highest or lowest point of a quadratic?

• parabola

• vertex

• graph

• point

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2

• x = 3

• x = -3

• y = 2

Does this parabola have a maximum or minimum?

• Maximum

• Minimum

What is the vertex?

• (5,2)

• (2,5)

• (-2,5)

• (-5,2)