D Block: Summative Assessment - Solving Quadratics

What was maximum height the ball was reached? ​ ​ (a)  

• 36.5 feet
• 3 feet
• 14 feet
• 6.821 feet

How long does it take the ball to reach the maximum height?​ (a)  

• 3 seconds
• 14 seconds
• 6.821 seconds

How long does it take for the ball to hit the ground?​ (a)  

• 6.821 seconds
• 14 seconds
• 3 seconds
• 36.5 seconds

How high was the ball when it was thrown?​ (a)  

• 14 feet
• 3 feet
• 6 feet
• 6.82 feet

• -2
• -10
• 0.9
• 11.1
• 9
• 111
• -9
• -111

• no solution
• no real numbers
• 7
• -8
• 11
• 19.29
• 4.39
• 0.56
• 0.16

a

b

c

d

Lily's maximum eight at 9 feet high

Lily at 5 feet above the water

Lily hitting the water at 1.25 s.

Lily 1/2 second reach max height

• 2 seconds
• 114 feet
• 4.67 seconds
• 16 seconds
• 50 feet
• 64 feet
• 3.2 seconds
• 1.6 seconds
• 6.4 seconds
• 64 ft/second