Unlimited Practice: Proportionality

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x	y
0	0
1	2.4
2	4.8
3	7.2

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 not proportional because the difference between 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.

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

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

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

x	y
-2	-7
-1	-3.5
0	0
1	3.5

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

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.

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

Leshawn is making a scale model of a building. The actual height of the building is 2,000 feet. Leshawn wants to make a model using the scale 3 inches of the model for every 20 feet of the actual building.

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

$2,000x = 3 \times 20$

$\frac{x}{2,000} = \frac{3}{20}$

$\frac{2,000}{x} = \frac{3}{20}$

$x = \frac{3}{20} \times 2,000$

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