A person standing close to the edge on top of a 72-foot building throws a ball vertically upward. The quadratic function h=−16t^2+84t+72 models the ball's height above the ground, h, in feet, t seconds after it was thrown. What is the maximum height of the ball? How many seconds does it take until the ball hits the ground?
A person standing close to the edge on top of a 72-foot building throws a ball vertically upward. The quadratic function h=−16t^2+84t+72 models the ball's height above the ground, h, in feet, t seconds after it was thrown. What is the maximum height of the ball? How many seconds does it take until the ball hits the ground?
Chapter5: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 1CT
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A person standing close to the edge on top of a 72-foot building throws a ball vertically upward. The quadratic function h=−16t^2+84t+72 models the ball's height above the ground, h, in feet, t seconds after it was thrown.
What is the maximum height of the ball?
How many seconds does it take until the ball hits the ground?
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