Quadratic Equations, Discriminant Graphing

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

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

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

• parabola

• vertex

• graph

• point

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1

Tags

CCSS.HSF-IF.C.7A

What are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?
f(x) = 2(x - 5)² + 12

• (0, -5)

• (0,12)

• (0, 62)

• (0, 212)

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?
f(x) = -2x² + 4x - 6

• (0, 6)

• (0, -6)

• (6, 0)

• (-6, 0)

Tags

CCSS.HSF-IF.C.7A

If each mark on the x-axis represents one second, when did the object reach the ground?

• 2.5 seconds

• 6 seconds

• 5.5 seconds

• 5 seconds

Determine the values of a, b and c for the quadratic equation 9x² - 14x + 5.

• a = -14, b = 9, c = 5

• a = 5, b = 9, c = - 14

• a = 9, b = - 14, c = 5

• a = x², b = x , c = 5

Does y = -5x² + 10x - 14 have a maximum or minimum?

• minimum

• maximum

Tags

CCSS.HSF-IF.C.7A

What's the axis of symmetry of y = 3x² - 6x + 4?

• x = 4

• x = 6

• x = 2

• x = 1