Question: Height of a Thrown Object. The function S(t) = - 16t2 + 32t + 1920 Gives the height S, in feet, of an object thrown

Height of a Thrown Object.
The function S(t) = - 16t2 + 32t + 1920
Gives the height S, in feet, of an object thrown upward with a velocity of 32 ft>sec from a cliff that is 1920 ft high. Here t is the time, in seconds, that the object is in the air.

a) For what times is the height greater than 1920 ft?
b) For what times is the height less than 640 ft?

/1920 200 1500 1000 500 -4 16

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