Step-by-step explanation:

Answer:
D. {-8, -5, 3, 7}
Step-by-step explanation:
__________
Answer:
Part 1:
Domain= {2,3,8,9}
Range = {7,9,14}
Part 2: Yes it is not a function
Step-by-step explanation:
Domain is the first number
Range is the second.
Domain= {2,3,8,9}
Range = {7,9,14} ( Notice that 14 is noted twice so just put it as once and this is not part of the answer)
Function: Is any of the domain numbers the same: Answer Yes it's a function.
So first uadd 30 with 25 the the answer u get u multiply with 12 hope that helps
No this is not a function because a function can only have one output for each input.