Skydiving When skydivers jump out of an airplane, they experience free fall. The photos show various heights of a skydiver at different times during free fall, ignoring air resistance. How can you represent this relation in four different ways?
Ordered Pairs
{(0, 10,000),
(4, 9744),
(8, 8976),
(12, 7696),
(16, 5904)}
What is the input? The output?
The input is the time. The output is the height above the ground.
Time (s) | Height (ft) |
---|---|
0 | 10,000 |
4 | 9744 |
8 | 8976 |
12 | 7696 |
16 | 5904 |
Each time value represents an input, which is paired with its corresponding output value (height).
The domain of a relation is the set of inputs, also called x-coordinates, of the ordered pairs. The range is the set of outputs, also called y-coordinates, of the ordered pairs.