Mathematics, 18.01.2021 05:30 jwbri
Heidi bought a machine that throws tennis balls for her dog to fetch. The height of each ball thrown by the machine, in feet, is modeled by the function f(x) = –x2 + x + 2, where x represents time in seconds. How many seconds after the machine throws the ball does it hit the ground?
Question 11 options:
1 second
3 seconds
2 seconds
4 seconds
Answers: 2
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