Math Problem Statement
A rocket is launched in the air. Its height in feet is given by h, equals, minus, 16, t, squared, plus, 128, th=−16t 2 +128t where tt represents the time in seconds after launch. How many seconds have gone by when the rocket is at its highest point?
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Quadratic Equations
Vertex of a Parabola
Formulas
Quadratic equation: ax^2 + bx + c = 0
Time of vertex (maximum or minimum point) in a quadratic equation: t = -b / (2a)
Theorems
Quadratic Formula Theorem
Vertex Formula
Suitable Grade Level
Grades 9-11
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