Unlimited Practice: Proportionality

x	y
4	9
6	13
8	17
10	21

Based on the table above, which statement describes the relationship between x and y?

The relationship is proportional because the difference between x to y is constant.

The relationship is not proportional because the ratio of x to y is not constant.

The relationship is proportional because the ratio of x to y is constant.

The relationship is not proportional because the difference between x to y is constant.

Andrew is making a scale model of a building. The actual height of the building is 2,500 feet. Andrew wants to make a model using the scale 4 inches of the model for every 20 feet of the actual building.

Which equation can Andrew use to determing x, the height in inches, the scale model should be?

$2,500x = \frac{4}{20}$

$2,500x = 4 \times 20$

$x = \frac{4}{20} \times 2,500$

$\frac{x}{2,500} = \frac{4}{20}$

A recipe requires 3.4 cups of flour and 9.52 teaspoons of honey.

If Meghan uses 6.8 cups of flour, how many teaspoons of honey should be used?

20.44

19.44

19.69

19.04

x	y
8	28
9	31.5
10	35
11	38.5

Based on the table above, which statement describes the relationship between x and y?

The relationship is not proportional because the ratio of x to y is constant.

The relationship is proportional because the ratio of x to y is constant.

The relationship is proportional because the difference between x to y is constant.

The relationship is not proportional because the difference between x to y is constant.