Checkpoint: Inverse Relations and Functions Solution
Write the inverse of relation P as a table. Explain if the inverse represents a function or not.
| x | y |
| 12 | –2.5 |
| 13 | –1.8 |
| 14 | –2.5 |
| 15 | –0.3 |
| 16 | –1.8 |
is a function because one output exists for every input. (Or the domain values do not repeat.)
Note
Q: What values pair with the domain and range?
A: The domain is all x-values and the range is all y-values.
Q: How do you write the inverse of a relation?
A: Reverse all of the domain and range values.