Graphing Vertex of Quadratics

Whats the vertex and what does it mean?

• (1.4, 31); At 1.4 seconds the football is at a maximum height of 31 ft

• (31, 1.4); At 1.4 seconds the football is at a maximum height of 31 ft

• 31; The max height of the ball

• 6 feet is the height the ball is thrown from

Does this parabola have a maximum or minimum?

• maximum

• minimum

Tags

CCSS.HSF-IF.C.7A

What quantity of pints of medicine produced is expected to have the highest profit?

• 100

• 200

• 400

• 700

What is the green dashed line called?

• roots or x-intercepts

• parabola

• line of symmetry or axis of symmetry

• vertex

Tags

CCSS.HSF-IF.C.7A

Find the vertex.

• (-1, -3)

• (-2, -3)

• (0, -3)

• (-1, 0)

Find the vertex of 
f(x) = -x² - 4x + 12.

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

The axis of symmetry for the function 2x²+8x+2 is x=-2. What is the vertex?

• (-2, -6)

• (-6, -2)

• (2, 6)

• (6, 2)

What is the vertex?
f(x) = -x² - 4x + 12.

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

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

• (5, 2); opens up

• (5, 2); opens down

• (-5, 2); opens up

• (-5, 2); opens down

For the quadratic y = -x² - 4x + 5, What is the vertex?

• (-2, 9)

• (9, -2)

• (-5, 1)

• (2, 1)