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Use graph paper for this question. Draw ...

Use graph paper for this question. Draw the graph of `2x-y-1=0` an `2x+y=9` on the same axes. Use 2 cm=1 unit on both axes and plot and 3 points per line.
Write down the co-ordinates of the point of intersection of the two lines.

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The correct Answer is:
x=2.5,y=4
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ICSE-GRAPHICAL SOLUTION(SOLUTION OF SIMULTANEOUS LINEAR EQUATIONS, GRAPHICALLY)-EXERCISE 27(B)
  1. Solve graphically the following pairs of equations : x-5=0 y+4=0

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  2. Solve graphically the following pairs of equations : 2x+y=23 4x-y=...

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  3. Solve graphically the following pairs of equations : 3x+7y=27 8-y=...

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  4. Solve graphically the following pairs of equations : (x+1)/4=2/3(1-2...

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  5. Solve graphically the simultaneous equations given below. Take the sca...

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  6. Use graph paper for this question. Draw the graph of 2x-y-1=0 an 2x+y=...

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  7. Use graph paper for this question. Take 2 cm =2 units onx-axis and 2cm...

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  8. Use graph paper for this question. Take 2cm=1 unit on both the axes. ...

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  9. The sides of a triangle are given by the equations y-2=0, y+1=3(x-2) a...

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  10. By drawing a graph for each of the equations 3x+y+5=0, 3y-x=5 and 2x+5...

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  11. Using the scale of 1 cm to 1 unit for both the axes, draw the graphs o...

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  12. The cost of manufacturing x articles is Rs. (50+3x). The selling price...

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  13. Find the graphically, the vertices of the triangle whose sides have th...

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  14. Using the same axes of co-ordinates and the same unit, solve graphical...

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  15. Solve graphically the following equations, x+2y=4,3x-2y=4 Take 2 c...

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  16. Use the graphical method to find the value of x for which the expressi...

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  17. The course of an enemy submarine, as plotted on reactangular co-ordina...

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