A lizard is jumping across the water in search of food. The equation h = -12t2 + 6t models the lizard's height in feet above the water t seconds after he jumps. How long after jumping is he back on the water?
Quadratic Gravity Word Problems

Quiz
•
Mathematics
•
9th Grade
•
Hard
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
0.1 seconds
0.25 seconds
0.50 seconds
0.75 seconds
1 second
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fireworks are fired from the roof of a 100-foot building. The equation h = -16t2 +84t + 100 models the height, h, of the fireworks at any given time, t. How high do the fireworks get?
2.625
6.25
100
200
210.25
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Your cousin hit a golf ball with an initial velocity of 27 feet per second. The equation h = -6t2 + 27t models the golf ball's height in feet t seconds after the ball was hit. How long after being hit did the ball reach maximum height?
1 second
2.25 seconds
3 seconds
4.5 seconds
5 seconds
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Your friend passes you the ball during a soccer game. The height off the ground is modeled by the equation
h = -4t2 + 12t. How high did the soccer ball get?
1.5
3
5
9
15
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A frog is sitting on the ground when he is scared by a big dog. The movement of the frog is modeled by the equation
h = -6t2 + 6t where h is the frog's height at any given time, t. How high does the frog jump?
0.5
1
1.5
2
5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A toy rocket is launched from the top of a 48-foot hill. The rocket's height, h(x), is modeled by the
equation h(x) = -16x2 + 32x +48 after x seconds. How high was the rocket at 2 seconds?
3
32
48
64
100
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
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