Introduction to Graphs and Functions

The graph of a Quadratic function is shown. Select ALL the statements that are true about the graph.

• The Zeros/Solutions are 1 & -3

• It has a minimum height of 4

• The Vertex is (-1, 4)

• In the Equations ax² + bx + c the value of "a" is negative because it opens down.

• In the equations ax² + bx + c, th value of "c" is 4

Tags

CCSS.HSF-IF.C.7A

• (19, 0)

• (121, 0)

• (0, 19)

• (0, 121)

Tags

CCSS.HSF-IF.C.7A

The graph of quadratic function k is shown on the grid.

Which statements are best supported by the graph of k?

Choose ALL that apply.

• The x-intercept is located at (-3, 0)

• The coordinates of the y-intercept are (0, 9)

• The axis of symmetry is x = -3

• The minimum is at -3

Tags

CCSS.HSF-IF.C.7A

Label the Graph with the Correct Key Features.

• Y-Intercept

• Zero

• Vertex

Tags

CCSS.HSF-IF.C.7B

What's the y-intercept of y = 3x²- 6x + 4

• (4,0)

• (-4,0)

• (0,-4)

• (0,4)

Tags

CCSS.HSF-IF.C.7A

How can you tell whether a parabola opens up or opens down by looking at the equation?

• The vertex tells you the direction of the opening

• The value of "a" tells you the direction of the opening. If a > 0, the graph opens up. If a < 0 the graph opens down.

• All parabolas open upward

• All parabolas open downward

Tags

CCSS.HSF-IF.C.7A

Does the equation open up or down? 
Y = -3x² +7x - 2

• up

• down

• Neither; it opens to the right.

• Neither; it opens to the left.

Tags

CCSS.HSF-IF.C.7A

How can you determine the y-intercept of the graph of a quadratic function?

• "c" is the constant and this will be the value of y when x = 0. The y-intercept is the point (0,c)

• Throw a dart at the y-axis and the point where it lands is the y-intercept

• Parabolas don't have a y-intercept

Tags

CCSS.HSF-IF.C.7A

Find the y-intercept of f(x) = 2x² - 2x + 1

• (1,0)

• (-2,0)

• (0,1)

• (0, -1)

Tags

CCSS.HSF-IF.C.7A