compare two variables. Each variable
is plotted along an axis . A line graph has a vertical axis and a horizontal
axis.
- Example:
The Graph below has the minimum wage as
the verticle axis and years as the horizontile axis. In 1990 the minimim
wage was about $3.90
is divided into pieces, each
displaying the size of some related piece of information. They are used to
display the sizes of parts that make up some whole.
- Example: The
circle graph below shows the
ingredients used to make a sausage and mushroom pizza. The fraction of each
ingredient by weight is shown in the pie chart below. We see that half of
the pizza's weight comes from the crust.
consist of an axis
and a series of labeled horizontal or vertical bars that show different
values for each bar. The numbers along a side of the bar graph are called
the scale.
- Example
The bar graph below shows the weight in
kilograms of some fruit sold one day by a local market. We can see that 52
kg of apples were sold, 40 kg of oranges were sold, and 8 kg of star fruit
were sold.
