Ch. 5 Vocabulary Test

Front

What is a reduction in terms of scale factors?

Back

A reduction occurs when the scale factor is less than 1, making the new figure smaller than the original.

Front

Define unit rate.

Back

A unit rate is a rate or ratio that has a denominator of 1, often used to compare quantities.

Front

What happens to a figure when the scale factor is greater than one?

Back

The new figure will be an enlargement of the original figure.

Front

What is a scale drawing?

Back

A scale drawing is a two-dimensional representation that maintains the proportions of the object it represents.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

If k = 1/2, what type of transformation does this represent?

Back

This represents a reduction.

Front

What is the relationship between ratios in a proportion?

Back

In a proportion, the cross products of the ratios are equal.

Front

How do you find a unit rate from a ratio?

Back

To find a unit rate, divide the numerator by the denominator to express the ratio as a quantity per one unit.

Front

What is the scale factor if a figure is enlarged to twice its size?

Back

The scale factor is 2.

Front

What is the difference between a ratio and a rate?

Back

A ratio compares two quantities, while a rate compares two quantities with different units.