Determine the Quadratic Function Whose Graph Is Given

question 196

Multiple Choice

Determine the quadratic function whose graph is given.
-A coin is tossed upward from a balcony 320 ft high with an initial velocity of 32 ft/sec. During what interval of time will the coin be at a height of at least 80 ft? (h = -16t² + vot + ho.)

• A) 4 ≤ t ≤5
• B) 0 ≤ t ≤ 1
• C) 5 ≤ t ≤10
• D) 0 ≤ t ≤5

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