Function or not a function? Please help me!
1. A person's name versus their social security number.
2. A person's social security number versus their name.
3. The cost of gas versus the amount of gas pumped.
4. { (3,6), 4,10), (8,12), (4,10)}
5. The temperature in degrees Fahrenheit with respect to the time of day.
6. The area of a circle as it relates to the radius.
7. The radius of a cylinder is dependent on the volume.

Question

Function or not a function?  Please help me!
1. A person's name versus their social security number.
2. A person's social security number versus their name.
3. The cost of gas versus the amount of gas pumped.
4. { (3,6), 4,10), (8,12), (4,10)}
5. The temperature in degrees Fahrenheit with respect to the time of day. 
6. The area of a circle as it relates to the radius.
7. The radius of a cylinder is dependent on the volume.

anonymous · Answer

I think the first three are functions but i'm not 100% sure

anonymous · Answer

Can I help?