Question 173389
The formula for the height of a ball as a function of time is given by the equation h = -16t^2 + vt + h, where h is the height of a ball in feet, v is the initial velocity of the ball in feet per second, h is the initial height of the ball in feet, and t is the time in seconds after the ball was thrown.
If a ball is thrown from an initial height of 5 feet at an initial velocity of 20 feet per second, what is its height after 1 second?

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You are given the formula and what to plug into the formula.

Let h, in the function, = 5 

Let v = 20 

Let t = 1

Plug these values into the formula and simplify.

Can you take it from here?