Page 407 - Math Smart - 7

The table shows the number of known moons of the planets in our solar system.

Planet Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
Number of
0 0 1 2 66 62 27 14
known moons

Present this data as a bar chart. Use a scale of 1 unit to represent 10 moons.

Solution
Known moons in the solar system
The highest bar
70- represents the planet
with the highest known
60-
number of moons.
50-
Number of
known moons ~
30-
20-
Notice that Mercury and Venus
10-
have no known moons. There
are no bars on the graph.
0
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
Planets

Bar-line graphs

Bar-line graphs use thick lines instead of bars to represent the data. Bar-line
graphs are similar to bar charts. 1. A bar-line graph
should have a title,
Let us look at the number of customers visiting Mimie's cafe again in a bar-line
a label for each axis,
graph.
values on one of the
axes and a label for
Customers visiting Mimie's cafe
each thick line.
-
2. Lines should be of
equal thickness and
the gaps between
Number of the lines should be of
customers
equal size.

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[ 1 I
Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Day

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