Chapter Name : Introduction To Graphs |
Sub Topic Code : 104_08_15_03_01 |
Topic Name : Some Applications |
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Sub Topic Name : Some Applications |
What is a Linear Graph?
Basic knowledge about proportions and graphs
Every place on the map can be uniquely specified by a pair of numbers or a coordinate.
How is the temperature of an oven shown against time?
Key Words | Definitions (pref. in our own words) |
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Graph Linear graph | A graph is an abstract representation of a set of objects where some pairs of the objects are connected by links A linear graph consists of a straight line segment. |
Gadgets | How it can be used |
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World map | Name a place and ask the student to indicate the coordinates of the place using the latitude as the X-axis and longitude as the Y-axis |
Maps, global positioning systems, navigation systems, travel compass, target systems
Examples | Explainations |
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Maps GPS | The maps use latitudes and longitudes as the coordinates to give the location of a place. The GPS system also uses latitudes and longitudes as the coordinates to give the location of the place. They also use the height factor to give the height of place from mean sea level. |
Linear graphs use a pair of numbers one each from the X and Y axes to give the exact value of a point. This pair of numbers is called a coordinate. It consists of the distance from Y-axis and distance from X-axis in straight lines.
To define the location of a place on a world map, we need to mark the distance of the place from the Y-axis called the X-coordinate and the distance of the place from X-axis called the Y-coordinate. Here X-coordinate is the longitude and Y-coordinate is the latitude.
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