Graphing quadratic functions

The graph of a quadratic function k is shown on the graph to the right. Which statements are best supported by the graph?

• The x-intercepts are located at (-3, 0) and (3, 0).

• The y-intercept is (0, 9).

• The axis of symmetry x=0

• This quadratic graph has a minimum

Which answer choice describes y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum

• The axis of symmetry is

  x = 4

• The parabola has a stretch factor of 2

• The solutions to the equation are x= -6 and x= -2

Forms of Quadratics - Vertex Form #2
The graph is of the equation y = -2(x - 1)² + 5

• True
• False

What does #2 represent on the graph?

• solutions, roots, x-intercepts, zeros

• y-intercept

• axis of symmetry

• vertex

If a quadratic has 2 imaginary solutions, how many x-intercepts does it have?

• 0

• 1

• 2

• 3

Which function is best represented by the graph?

• A

• B

• C

• D

The graph of function g is shown on the grid. Which statement is supported by the graph.

I. vertex is (-4, -1)

II. the y intercept is (-3, 0)

III. the axis of symmetry is x = -1

• I, II, III

• I and II only

• III only

• I and III only

What is the y-intercept of this parabola?

• (6, 0)

• (-2, 0)

• (-4, -2)

• (0, 6)

Determine the y intercept of the parabola:

y = 5x² - 20x + 13

• (0, 13)

• (13, 0)

• (2, -7)

• (0, -13)