"Give example of a function using a set of at least 4 ordered pairs. The domain will be any four integers between 0 and +10. The range will be any four integers between -12 and 5. Explain why example models a function"

Such a function may consist of (4, -3); (5, 0); (6, 2); and (7, 4). On those four ordered pairs no two of them have the same first element, so the given set of ordered pairs is a function.

"Then give example of a least four ordered pairs t hat does not model a function. The domain will be any four integers between 0 and +10. The range will be any four int3egers between -15 and +5. Explain why example does not model a function"

Such a function may consist of (4, 3); (4, -4); (6, 5); and (7, 8). On those four ordered pairs two of them have the same first element, which are (4, 3) and (4, -4) so the given set of ordered pairs is not a function.

:)