Question

EOC Review

Sue hits a ball from a height of 4 feet. The height of the ball above the ground is a function of the
horizontal distance the ball travels until it comes to rest on the ground. Consider
this complete graph of
the function.
Trajectory of Ball
80
60
Height of Ball (ft)
40
20
0
20 60 100 140 180
Horizontal Distance
the Ball Travels
Select all values that are in the domain of the function as shown in the graph.
DDDDD
D-5 feet
O feet
60 feet
200 feet
220 feet

Answer 1

0ft and 60ft

Explanation:

Given

The attached function

Required

Determine the valid values of the domain of the function

To do this, we simply consider the starting point and the end point of the trajectory on the x-axis (i.e. the horizontal distance).

From the attached graph, the horizontal distance starts from 0 and ends at 180.

This implies that the domain is:
`0 \le x \le 180`

From the options, the values that fall in this bracket are 0ft and 60ft