Graphing Proportional Relationships

It is a straight line and does not pass through the origin.

It is a curved line and passes through the origin.

It is a curved line and does not pass through the origin.

It is a straight line and passes through the origin.

3/2

2/3

1/2

2/1

(9, 6)

(6, 4)

(3, 2)

(12, 8)

No, because it does not pass through the origin.

Yes, because it is a straight line.

No, because it is not a straight line.

Yes, because it has a constant rate of change.

(1, 2)

(2, 5)

(4, 9)

(3, 7)

The unit rate of 1.5 inches per second.

The total distance traveled.

The time taken to travel 1.5 inches.

The starting point of the graph.

By finding the point where x equals 1.

By measuring the distance between two points.

By looking at the point (0, 0).

By calculating the slope of the line.

1.33

16

12

1

Both pay proportional amounts.

Neither pays proportional amounts.

The person who pays $1.25 per day.

The person who pays $1 plus $0.50 per day.

Use a calculator to find the points.

Ask the teacher for graph paper.

Draw your own graph with evenly spaced intervals.

Skip the exercise.