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Question
For the linear equation, given above, draw the graph and then use the graph drawn (in the following case) to find the area of a triangle enclosed by the graph and the co-ordinates axes:
3x - (5 - y) = 7
Solution
First draw the graph as follows:
This is an right triangle.
Thus the area of the triangle will be:
= `(1)/(2) xx "base" xx "altitude"`
= `(1)/(2) xx 4 xx 12`
= 24 sq.units
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