Question

The height above ground of a cannon is a function of the time since it was shot.

Question: When time equals 0, why is the height of the cannon ball not equal to 0? Describe the domain of this function. Describe the range.

Answer 1

Given is the quadratic function by its graph..

At the start point, when time is zero, the height is not zero because the cannon was shot above the ground level.

The domain is the time from the point the cannon was shot and to the point the ball lands.

The range is the height from zero to the maximum height the ball reaches.