This graph is a correct representation of the given quality! What I did was plug it into this online graphing calculator called desmos, you can use that!!
The answer to the question above is the first one
Divide 4.10 by 7 to get about 0.59 (round up because you can't get part of a penny) and that gives you 1/8 of a yard's price. Then multiply that by 8 to get a full yard for $4.72.
The answer is -22 because when you subtract -8 from -14 it gives you -22!
