Quadratic Functions Max Heights

Your nephew is standing on his deck, which is 4 feet off the ground. He tosses his toy up into the air. The equation

h = -2t² + 7t + 4 models the toy's height, h, from the ground at t seconds after he threw it. How high does he throw the toy?

Mathematical Equivalence

ON

Identify the function graphed here.

Tags

CCSS.HSF-IF.C.7A

Identify the function graphed here.

Tags

CCSS.HSF-IF.C.7A

Which of the following is a quadratic function that has a vertex at (0, 10) and opens down?

Identify the vertex and whether the graph opens up or down.

• (-1, 4); opens up

• (-1, 4); opens down

• (1, 4); opens up

• (1, 4); opens down

Is this a max or min?

• max

• min

• cannot be determined

Does y = -4x² have a maximum or minimum value?

• maximum

• minimum

Tags

CCSS.HSF-IF.C.7A

Does the equation have a max or min?
y = 2x² + 7x + 5

• max

• min

Tags

CCSS.HSF-IF.C.7A

The highest or lowest point on a quadratic is called the...

• Max

• Vertex

• Axis of Symmetry

• Intercept

The vertex of this quadratic is...

• (1,16)

• (-3,0)

• (5,0)

• (0,15)