Quadratic Properties Review

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. 

Which of the following describes the graph of f(x)= x² - 2x -15.

• The graph has a maximum and has the x-intercepts of (-3, 0) and (5, 0)
• The graph has a minimum and has the x-intercepts of (-3, 0) and (5, 0)
• The graph has a maximum and has the x-intercepts of (3, 0) and (-5, 0)
• The graph has a minimum and has the x-intercepts of (3, 0) and (-5, 0)

Tags

CCSS.HSF-IF.C.7A

What is the solution set for the quadratic function? 

• {-1.4, 4.2}
• {-1.4}
• {4.2}
• {1.5}

Which of the equations represent the graph?

• y=(x+3)(x-1) and y=x²+2x-3
• y=(x+3)(x-1) and y=-x²-2x+3
• y=-(x-3)(x+1) and y= x²+2x-3
• y=-(x+3)(x-1) and y= -x²-2x+3

A rocket was launched from a balcony 10 feet from the ground. The rocket modeled the equation h(t)= -t² + 6t + 10, where t represent time in seconds and h(t) represents the height in feet. What is the maximum height the rocket will reach before it starts to go back down? 

• 10 feet 
• 19 feet
• 13 feet
• 16 feet 

Solve by factoring: x²-2x-35=0

• (-6,-8)
• (-7,5)
• (7,-5)
• (7,8)

Tags

CCSS.HSA-REI.B.4B

Solve by taking square root:
2x²-4=28

• (4,-4)
• (65/4,-65/4)
• (7/2)
• (7/2,-7/2)

Will the following function open up or down: -2x²-3x+4

• Up
• Down

Tags

CCSS.HSF-IF.C.7A

A flare is launched from a boat. The height, h, in meters of the flare above the water is approximately modeled by the function h(t)=-15t²+150t, where t is time in seconds. After how many seconds will the flare reach its maximum height?

• 15
• 10
• 5
• 150

A flare is launched from a boat. The height, h, in meters of the flare above the water is approximately modeled by the function h(t)=-15t²+150t, where t is time in seconds. How many seconds will it take for the flare to return to the water?

• 150
• 10
• 375
• 15