For the Given Set of Ondered Pairs, Determine Whether a Function

True/False

For the given set of ondered pairs, determine whether a function could be defined for which the input would be an $\mathrm{x}$ -coordinate and the output would be the corresponding $\mathbf{y}$ -coordinate.
- $\{(-3,3),(-1,2),(1,-7),(6,8)\}$