Quadratics

Find the y-intercept of f(x) = 2(x + 3)² + 5

• 19

• 23

• 18

• 26

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

CCSS.HSF-IF.C.7A

Identify the vertex and whether the graph opens up or down.

• (-1, 4); opens up
• (-1, 4); opens down
• (1, 4); opens up
• (1, 4); opens down

Tags

CCSS.HSF-IF.C.7A

How many roots does this parabola have?

• 3

• 2

• 0

• 1

If the a value is positive, which direction does the parabola open?

• up

• down

• left

• right

What is the vertex of this quadratic equation?

• (-2,4)

• (2,4)

• (4,-2)

• (-4,-2)

What is the equation of the parabola?

• y = (x + 4)² - 4

• y = 2(x - 4)² - 4

• y = (x - 4)² - 4

• y = -(x - 4)² - 4

Which quadratic function is represented by the graph?

• y = -(x - 4)² + 5

• y = -(x + 4)² + 5

• y = -2(x - 4)² + 5

• y = -2(x + 4)² + 5

What is true about the graph of

y = 3(x + 7)² -1

• The graph opens up and is stretched.

• The graph opens up and is compressed.

• The graph opens down and is stretched.

• The graph opens down and is compressed.

What is true about the graph of

y = 1/2 (x - 4)² +8

• The graph opens up and is stretched.

• The graph opens up and is compressed.

• The graph opens down and is stretched.

• The graph opens down and is compressed.