Proportionality of Tables and Graphs-7th Grade Math

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something, like miles per hour.

Front

What does it mean for a graph to be proportional?

Back

A graph is proportional if it is a straight line that goes through the origin (0,0).

Front

What indicates that a table is proportional?

Back

A table is proportional if all the ratios of the values are equivalent.

Front

How do you find the constant of proportionality from a table?

Back

Divide the output value by the input value for any pair of values in the table.

Front

What is the constant of proportionality in the table: (1, 1.25), (2, 2.50), (3, 3.75)?

Back

1.25

Front

What is the constant of proportionality in the graph that passes through (1, 3), (2, 6), (3, 9)?

Back

3

Front

What does it mean if a graph does not go through the origin?

Back

If a graph does not go through the origin, it is not proportional.

Front

What is the relationship between the coordinates of a proportional graph?

Back

The y-coordinate is a constant multiple of the x-coordinate.

Front

If a table shows the values (0,0), (2,4), (4,8), is it proportional?

Back

Yes, because all ratios (y/x) are equivalent (2).

Front

What is the slope of a proportional graph?

Back

The slope of a proportional graph is the constant of proportionality.