5. Decide whether each table could represent a proportional relationship. If the relationship could be
proportional, what would be the constant of proportionality?
a.
The sizes you can print a photo:
width of photo (inches)
2
height of photo (inches)
3
6
4
5
7
10
8
b.
The distance from which a lighthouse is visible:
distance it can be seen (miles)
6
height of a lighthouse (feet)
20
45
70
+
9
11
95
13
150
16