A rock is thrown upward from a bridge into a river below. The function f(t) = −16 2 + 41t + 130 determines the height of the rock above the surface of the water (in feet) in terms of the number of seconds t since the rock was thrown.

The bridge's height above the water is 130 feets.

Step-by-step explanation:

A rock is thrown upward from a bridge into a river below :

Here t is time in seconds

It is required to find the bridge's height above the water. When it reaches the height of the rock above the surface of the water, then :

h(t) = 0

So, the bridge's height above the water is 130 feets.

add 5 subtract 1

step-by-step explanation:

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