Question
Explain by giving example that how can we choose a suitable scale.
✓
Answer
While choosing the most suitable scale for drawing a graph, we should keep the following points in mind.
- The difference between the highest and lowest values of each quantity.
- The intermediate values of each quantity so that with the scale chosen, it is easy to mark the values on the graph.
- To utilise the maximum part of the paper on which the graph is to be drawn, assume that we have a graph paper of size $25cm$ x $25cm$ and we have to accommodate following data:
|
Time (AM)
|
Odometer reading
|
Distance from the starting point
|
|
$8:00 AM$
|
$36540\ km$
|
$0\ km$
|
|
$8:30 AM$
|
$36560\ km$
|
$20\ km$
|
|
$9:00 AM$
|
$36580\ km$
|
$40\ km$
|
|
$9:30 AM$
|
$36600\ km$
|
$60\ km$
|
|
$10:00 AM$
|
$36620\ km$
|
$80\ km$
|
Since, one of the scales will be,
Distance $5km = 1cm$ and Time $6$ min $= 1cm.$
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