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Type: Multiple-Choice
Category: Quadratic Equations and Expressions
Level: Grade 11
Standards: HSA-REI.B.4, HSA-REI.B.4b
Author: Math_Teach2
Last Modified: 16 days ago

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Grade 11 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b

Use this formula to solve this real world problem.

[math]h = -16t^2 + s[/math]
h = height in which it hits its target = 0 feet
s = initial height at which jump occurs = 64 feet

Farmer Brown had a silo that was 64 feet high. He joined a circus and started jumping from the top of his silo into the pond below. How many seconds did it take him to hit the water 64 feet below?
  1. t = +/- 2 seconds
  2. t = - 2 seconds
  3. t = 2 seconds
  4. t ~ 2.3 seconds
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