Unit 6 Part 1 Practice

The graph below describes a ball that was kicked. Which of the following is a true statement describing the graph?

• The ball was kicked from 500 centimeters from the ground and it traveled for 4 seconds.

• The ball was kicked from the ground and it was in the air for 4 seconds. 

• The ball had a maximum height of 2000 centimeters and it was in the air for a total of 2 seconds. 

• The ball had a maximum height of 1000 centimeters and it was in the air for 4 seconds. 

What is the domain and the range for the graph?

• Domain : -2 ≤ x ≤ 2
  Range : 0 ≤ y ≤ 4

• Domain : 0 ≤ x ≤ 4
  Range : -2 ≤ y ≤ 2

• Domain : All real #s
  Range : y ≤ 4

• Domain : -2 ≤ x ≤ 2
  Range : y ≤ 4

How do you know if a parabola has a minimum vertex?

• When a is positive there is a minimum

• When a is negative there is a minimum

• When all the numbers in the equation are negative there is a minimum

• When all the numbers in the equation are positive there is a minimum

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

• y = -2
• x = 3
• x = -3
• y = 2

What is the vertex of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

What is the y-intercept of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

What are the x-intercepts of the graph of  $y=\left(x-2\right)\left(x-4\right)$  ?

•  $\left(2,0\right)\left(4,0\right)$  

•  $\left(-2,0\right)\left(-4,0\right)$  

•  $\left(0,\ 2\right)\left(0,\ 4\right)$  

•  $\left(0,\ -2\right)\left(0,\ -4\right)$  

What is the vertex of the graph?

• There is no vertex

What is the range of this quadratic graph?

• y ≥ 3
• y ≤ 3
• ℝ
• y ≤ 2