Unit 6 Quiz 1 Math 2

The height of a water balloon that is launched into the air is given by h(t) = -5x²+20x+25. When will the balloon explode on the ground?

• 5 seconds

• 1 second

• 2 seconds

• 3 seconds

A ball is thrown into the air with an upward velocity of 40ft/s. Its height h in feet after t seconds is given by the function :

h(t) = -16t² + 40t + 10

How many seconds does it take the ball to reach its maximum height?

• 1.25 seconds

• 1.4 seconds

• 2.5 seconds

• 2 seconds

The profit from selling local ballet tickets depends on the ticket price. Using past receipts, we find that the profit can be modeled by the function:

p= -15x² +600x +60

What is the maximum profit you can make from selling tickets?

• $6060

• $20

• $600

• $10,250

A diver is standing on a platform above the pool. He jumps form the platform with an initial upward velocity of 8 ft/s. Use the formula: h(t) = −16 t² + 8t + 24

How high is the platform?(Hint: Looking for either the x or y intercept as your answer)

• .25 ft

• 24 ft

• 25 ft

• 8 ft

You jump off a 24 foot high cliff and your fall is modeled by the function:

h(t) = -16t² + 8t + 24

How high will you be after 1 second of jumping off the cliff?

• -16 feet

• 24 feet

• 16 feet

• 17 feet

Determine the number of solutions to the given linear-quadratic system.

• 0 solutions
• 1 solution
• 2 solutions
• 3 solutions

Tags

CCSS.HSA.REI.C.7

Two equations were graphed on the set of axes below.  Which point is a solution to the system of equations ?

• (0,3)
• (5,0)
• (2,-3)
• (8,9)

Tags

CCSS.HSA.REI.C.7

Find the solution(s).

• (-1,7) and (0,5)
• (-4,2) and (-5,8)
• (-2,6) and (10,15)
• (-2,4) and (6,12)

Tags

CCSS.HSA.REI.C.7

Find the solution.

• (0,7) and (0,-3)
• (2,6) and (7,4)
• (3,0) and (7,4)
• (-1,5) and (-3,9)

Tags

CCSS.HSA.REI.C.7

Find the solution(s).

• (3,18) and (-4, 15)
• (5,2) and (5,-9)
• (-4,-4)
• (-4,2)

Tags

CCSS.HSA.REI.C.7