Identifying Parts of Quadratic

Identify the y-intercept

• (0, -3)

• (0, 1)

• (0, 3)

• (2, 1)

What is the green dashed line called?

• roots or x-intercepts

• parabola

• axis of symmetry

What is the significance of the ordered pair (2, -4) to the graph?

• It is the vertex

• It is an x-intercept

• It is the y-intercept

• It is the axis of symmetry

What is the vertex of the function   y = (x - 3)² + 5

• (-3, 5)

• (3, -5)

• (-3, -5)

• (3, 5)

What is the vertex of a parabola with the following equation: y= 2(x-3)² + 4 Does the parabola open upwards or downwards? Select all that apply

• Up a = 2

• Down

• Vertex ( 3,4)

• Vertex (-3,4)

y = -(x + 1)² - 4 y = -(x + 1)² + 4 y = -(x - 1)² - 4 y = (x + 1)² + 4

• y = -(x + 1)² - 4

• y = -(x + 1)² + 4

• y = -(x - 1)² - 4

• y = (x + 1)² + 4

y = (x - 2)² + 2 y = (x + 2)² + 2 y = (x - 2)² - 2 y = -(x - 2)² + 2

• y = (x - 2)² + 2

• y = (x + 2)² + 2

• y = (x - 2)² - 2

• y = -(x - 2)² + 2

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

• y = -2

• x = 3

• x = -3

• y = 2

Define Minimum

• The highest y-value on the graph

• Where the parabola touches or intersects the y-axis

• Where the parabola touches or intersects the x-axis, also called the x-intercept

• The lowest y-value on the graph

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

• maximum

• minimum

• max-min

• none