1. Because each element in the domain is matched exactly with one element I. The range.
The least is 2/7 then 1/2 then 5/6 and the greatest is 4/2
I will show how to do it:
Step 1: Start your point at 3 in the y axis (line going upwards)
Step 2: Move up twice.
Step 3: Now go to the right once.
Step 4: Use a ruler to draw the line.
Step 5: Cross check by picking two points that are on the line. Or use the formula - y2 - y1 / x2 - x1
It would cost $105 because if you do 13+13+13= 39
22+22+22= 66
66+39= 105.
