Proportions multiple choice

Two quantities that both increase or decrease by the same multiple

• ratio

• rate

• slope

• direct variation

Shows the relative sizes of two or more values.

3:1

3 to 1

3/1

• slope

• ratio

• direct variation

• proportion

A comparison of two related quantities.

Often written "this per that" but there are many possibilities, including a single number calculated using division.

• cross product

• ratio

• direct variaton

• rate

How much of something per 1 unit of something else

• unit rate

• ratio

• proportional

• slope

Says that two ratios (or fractions) are equal

• ratio

• slope

• proportion

• rate

When quantities have the same relative size. In other words they have the same ratio.

• proportional

• slope

• unit rate

• cross products

Either of the two products obtained by multiplying the numerator and denominator of two proportions

• constant rate of proportionality

• cross products

• proportion

• rate

How steep a line is.

• proportion

• rate

• unit rate

• slope

The constant value (often written k) relating amounts that rise or fall uniformly together.

• rate

• constant of proportionality

• direct variaton

• slope