Quadratics Basics

What is the y-intercept of the function

y = -2x² + 8x - 6?

• (0, 8)

• (0, -6)

• (0, 2)

• (0, 0)

Tags

CCSS.HSF-IF.C.7A

The minimum of a quadratic function is

• The lowest point (vertex) on a graph when a parabola opens up; the point where the graph changes from decreasing to increasing
• The highest point (vertex) on a graph when a parabola opens down; the point where the graph changes from increasing to decreasing

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

• parabola
• vertex
• graph
• point

What is the vertex of this quadratic equation?

y = -2(x + 2)² + 4

• (-2,4)

• (-2,-4)

• (4,-2)

• (-4,-2)

Does this graph have a maximum or minimum?

• Minimum
• Maximum

Tags

CCSS.HSF-IF.C.7A

A parabola has a vertex at (-3, 2).

What is the equation of the axis of symmetry?

• y = -2

• x = 3

• x = -3

• y = 2

What is the axis of symmetry for this graph?

• y=2
• x=2
• x=0
• y=0

Tags

CCSS.HSF-IF.C.7A

What is another word for ROOTS?

• Zeros
• y-intercept
• Maximum
• Vertex

Tags

CCSS.HSF-IF.C.7C

What are the x- intercepts?

• (0, 0) and (-4, 0)

• (0, 0)and (4, 0)

• (0, 0) and (0, 4)

• (2, -2)

Tags

CCSS.HSF-IF.C.7A

True or false: The vertex in Graph A is a minimum

• True

• False

Tags

CCSS.HSF-IF.C.7A