Question

A player hit a baseball from home plate 3 feet above the ground.  The graph shows the height in feet of the baseball above the grounds as a quadratic function of x, the horizontal distance in feet of the baseball from home plate.What is the domain of this function?3≤x≤400≤y≤103≤y≤100≤x≤40

Answer 1

As the image attached shows, the horizontal distance reached by the ball is 40 feet.

Notice that the horizontal movement goes from 0 to 40, this means the domain is

`0\leq x\leq40`

Since x-values are domain values.

Therefore, the right answer is the last choice.