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Advanced Math
/ Nonlinear functions
Difficulty: Medium
An egg is thrown from a rooftop. The equation represents this situation, where is the height of the egg above the ground, in meters, seconds after it is thrown. According to the equation, what is the height, in meters, from which the egg was thrown?
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Explanation
The correct answer is . It's given that an egg is thrown from a rooftop and that the equation represents this situation, where is the height of the egg above the ground, in meters, seconds after it is thrown. If follows that the height, in meters, from which the egg was thrown is the value of when . Substituting for in the equation yields , or . Therefore, according to the equation, the height, in meters, from which the egg was thrown is .