Quadratic Function Graphing

Explain the concept of the focus and directrix in relation to the graph of a parabola.

• The focus is a point on the parabola and the directrix is a line that is equidistant from all points on the parabola.

• The focus is a line and the directrix is a point on the parabola.

• The focus is the vertex of the parabola and the directrix is the axis of symmetry.

• The focus is the y-intercept and the directrix is the x-intercept of the parabola.

• A
  Roots are -1 and -3
• B
  Roots are 0 and 3
• C
  Roots are 1 and 4
• D
  Roots are -1 and 3

If the blue graph is
f(x) = x² 
then the red must be...

• g(x) = x² - 5

• g(x) = x² + 5

• g(x) = (x - 5)²

• g(x) = (x + 5)²

• -1 and -2

• No Solution

• 2

• 1 and 2

Determine the solutions of the graph:

• No Solutions

• (-3, 0) and (-1, 0)

• Infinity Many Solutions

• (-1, 0)

Which is a zero of the graph?

• 0

• -1

• 1.5

• -3

• (-2, 5)

• (2, -5)

• (-5, 2)

• (5, -2)

Where is the AoS (Axis of Symmetry) for

y = -2x²+4x+2

• x = 2

• x = 1

• x = -1

• x = 4

Calculate the roots of the quadratic.

• x = 6 and 3

• x = 1 and 0

• x = 0 and 3

• x = 3 and 1

What are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2