Answer:
There is exactly one output for each input.
The graph of a linear function is a straight line.
A linear function has a constant rate of change.
Step-by-step explanation:
The answer is 4:1
48/12 is 4
Answer:
20) yes
21) -1
22) 1
23) -4
Step-by-step explanation:
Sorry man but I have no idea you could try google