John stands on the roof of a building and throws a ball upwards.
The ball’s height above the ground is given by the formula: h=−3t2+12t+15,
where h is the height in meters at t seconds after the ball is thrown.
A school Halloween dance charges $5 for admission, and 200 students are willing to attend the dance. For every 25 cents increase in price, attendance drops by 4 students.
Applications of quadratic functions
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