Since the graph of the given functions is a straight line, the graph belongs to a linear function, as all linear functions have their graphs as a straight line. For a non-linear function the graph is not a straight line.
For a relation (non-function), the line passes through same value of x for more than one points.
Hence the correct answer is "Linear Function"
the circumference is 47.12 and the area is 176.71 :)
48 feet of fabric = 8 blankets
6 feet of fabric = 1 blanket
12 feet of fabric = 2 blankets