Graphing Quadratic Equations Key Features

What is the significance of the ordered pair (0, -2) 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 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

Determine the domain and range of the function

• Domain: All real numbers, Range: All real numbers

• Domain: x ≥ -4, Range: All real numbers

• Domain: All real numbers, Range: y ≥ -4

• Domain: -1 ≤ x ≤ 5, Range: y ≥ -4

What is the equation of the axis of symmetry?

• y = 0

• x = 0

• x = 3

• x = -3

Quadratic equations take the shape of a _______ when graphed.

• parabola

• straight line

• snaked line

• elliptical

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

What is the axis of symmetry of y=2x²-4x+9?

• x = 1
• x = -1
• x = -2
• x = 4

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

Use the picture to find  the vertex and axis of symmetry

•  Vertex (3,8) Axis x=3
• Vertex (3,8) Axis y=3
• Vertex (8,3) Axis x=3
• Vertex (8,3) Axis y=3

What is the axis of symmetry of y=2x² - x - 6?

• x = 1/4

• x = -1/4

• x = 49/8

• x = -49/8