Solutions of Linear Equation in 2 Variables on a Graph
The area of t...
Question
The area of the triangle whose sides are represented by the graphs of the equations x=0,y=0 and x+y=2, is
A
4 sq.units
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B
3 sq.units
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C
2 sq.units
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D
5 sq.units
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Solution
The correct option is C 2 sq.units The equation x = 0 represents y-axis, and the equation y = 0 represents x-axis.
For the equation x+y=2:
At x=0;0+y=2 ⇒y=2
At y=0;x+0=2 ⇒x=2 x02y20
Drawing the lines x=0,y=0 and x+y=2 on the coordinate plane, we get
From the obtained graph, the formed triangle has a height of 2 units and base length of 2 units. ∴ Area of a Triangle =12×Base×Height =12×2×2 =2 sq.units
Hence, the correct answer is option (c).