Line graphs
Select Lesson
Geometry - position and direction
Geometry - properties of shapes
Measurement
Fractions
Multiplication and division
Addition and subtraction
Explainer Video
Summary
Line graphs
In a nutshell
Line graphs are a visual way to show changes to a measurement over time.
Example 1
This line graph shows the change in temperature of an icy glass of of water left in the sun.
Temperature of water left in the sun over time
Interpreting line graphs
Line graphs have the thing being measured on the -axis and the time on the -axis. To read the example above, pick a point and move down to see the time, or across to see the temperature.
Tip: Remember the -axis is the vertical one (side) and the -axis is the horizontal one (bottom).
Example 2
In the above line graph, after minutes the temperature is .
Drawing line graphs
Drawing a line graph is very simple:
PROCEDURE
1. | Draw and label the axes. |
2. | Plot each individual point on the graph using a cross. |
3. | Join each point together with a line. |
FAQs - Frequently Asked Questions
How do I read a line graph?
To read, pick a point and move down to see the time and across to see the measurement.
What goes on which axis in a line graph?
Line graphs have the quantity being measured on the y-axis and the time on the x-axis.
How do I draw a line graph?
1. Draw and label the axes 2. Plot each individual point on the graph using an x 3. Join each point together with a line
What is a line graph?
Line graphs are a visual way to show changes to a measurement over time.