Answer:
Length of the longer side of the rectangle is 6 units
Explanation:
Given:
coordinates of rectangle as:
(1, 1), (3,1), (3,7), and (1, 7)
on plotting the points on the graph, we get the longer side between the points (1, 1) and (1, 7)
NOTE: Graph is attached with the solution
Now,
the distance between two points is given as:
distance =

on substituting the values, we get
distance =

or
distance =

or
distance = 6 units
therefore,
the length of the longer side of the rectangle is 6 units