Proportional Graphs

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers used to locate a point on a graph, written in the form (X,Y).

Front

What does the term 'rate of change' refer to in a graph?

Back

The rate of change refers to how much one quantity changes in relation to another quantity, often expressed as a ratio.

Front

How do you identify the unit rate in a proportional relationship?

Back

The unit rate is found by dividing the two quantities to express the relationship as a quantity per one unit of the other.

Front

What is the origin in a coordinate plane?

Back

The origin is the point where the x-axis and y-axis intersect, represented by the ordered pair (0,0).

Front

What does it mean for a graph to show a proportional relationship?

Back

A graph shows a proportional relationship if it passes through the origin and has a constant rate of change.

Front

How can you determine if a graph is proportional?

Back

A graph is proportional if it is a straight line that passes through the origin.

Front

What is the x-axis?

Back

The x-axis is the horizontal line on a graph where the y-coordinate is zero.

Front

What is the y-axis?

Back

The y-axis is the vertical line on a graph where the x-coordinate is zero.

Front

What is a constant rate of change?

Back

A constant rate of change means that the ratio of change between two quantities remains the same.

Front

How do you write the coordinates of a point on a graph?

Back

Coordinates are written as an ordered pair (X,Y), where X is the horizontal position and Y is the vertical position.