Question

A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 6 inches.

Answer 1

PART A:
x | 0  |  1  |  2 | 3  | 4   | 5  |  6  |  7  | 8  | 9 | 10 | 11 | 12 |
y | 6 | 5.5 | 5 | 4.5 | 4 | 3.5 | 3 | 2.5 | 2 | 1.5 | 1 | 0.5 | 0 |

x=hours
y=candle length

PART B:
Yes it is a function because you can input the values 

PART C: 
Yes, it will still be a function but with a different different y value