Quadratics Unit 7/8

**CHOOSE ALL THAT APPLY** Which of the following statements are true regarding the quadratic graph?

• Opens up

• f(x) has a y-intercept at (0, -5)

• f(x) has a minimum

• f(x) has a maximum

• opens down

What are other words for zeros?

• solutions

• roots

• vertex

• y-intercept

What are the x- intercepts?

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

• Yes

• No

What is the axis of symmetry?

• x = - 4
• x = - 2
• x = 0
• x = 4

The point  $\left(-2,\ 4\right)$  is called the _________ .

•  $x-intercept\$  

•  $y-intercept$  

•  $axis\ of\ symmetry$  

•  $vertex$  

What was the maximum height of the water? Choose the key feature and the answer.

• y-intercept, 0 feet

• x-value of the maximum, 2 feet

• y-value of the maximum, 10 feet

• x-intercept. 3.85 feet

A parabola has a vertex at (-3,2). Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

Which equation has a vertex of (-3, 4)?

• y = (x + 3)² + 4

• y = (x + 3)² - 4

• y = (x - 3)² + 4

• y = (x - 3)² - 4

The minimum of a quadratic function is

• The lowest point (vertex) on a graph when a parabola opens up; the point where the graph changes from decreasing to increasing
• The highest point (vertex) on a graph when a parabola opens down; the point where the graph changes from increasing to decreasing