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Subjects

Mathematics

Graphical method of finding solutions.

In this Class 10 Mathematics topic from the chapter Pair of Linear Equations in Two Variables, students learn to represent each linear equation as a straight line on the Cartesian plane and identify the solution through the point where the lines intersect. The topic explains how intersecting, parallel, and coincident lines correspond to a unique solution, no solution, or infinitely many solutions. Students also practise plotting points, reading coordinates, and checking solutions graphically.

Easy · Level 2 · 25 questions

Practice questions

01In the graphical method, if two lines intersect at exactly one point, what type of pair of linear equations is it?

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02In the graphical method, if the graphs of two linear equations are coincident lines, what type of pair of equations is formed?

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03Which ordered pair is the solution of the equations \(x+y=10\) and \(x-y=4\)?

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04What is the intersection point of the graphs of \\(2x+y=7\\) and \\(x+y=5\\)?

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05Which is the solution of (x+3y=9) and (x+y=5)?

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06What is the point of intersection of the (x)-axis and (y)-axis called?

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07What are the intercepts of the line \(x+y=6\) on the x-axis and y-axis, respectively?

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08Which of the following pairs of points can be used to draw the line represented by the equation \(2x+y=4\)?

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09Which of the following points lies on the line represented by the equation \(x-2y=0\)?

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10If two lines intersect at the point \((1, 2)\), what is the \(x\)-coordinate of the point?

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11If two lines intersect at the point (5, 2), what is the y-coordinate of their point of intersection?

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12Which line is represented by the equation \(x=0\)?

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13Which line is represented by the equation \(y=0\)?

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14How will the lines (x=2) and (x=5) appear on the graph?

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15How will the lines \(y=1\) and \(y=4\) appear on a graph?

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16At which point will the lines x + y = 2 and x − y = 2 intersect on the graph?

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17What type of lines are (x+2y=4) and (x+2y=4)?

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18Which equation is obtained by simplifying (4x+2y=8)?

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19In graphical method, after drawing the correct graph, how is the solution read?

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20Which point is obtained on the graph of the equation x + y = 8 when x = 5 is substituted?

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21For the equation \(x-y=3\), which point is obtained when \(y=1\)?

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22Which point is obtained on the graph of \(2x+3y=12\) when \(x=0\)?

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23Which point is obtained by putting \\(y=0\\) in the equation \\(3x+2y=12\\)?

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24Which mistake is most common in graphical method?

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25In graphical method, the solution of a pair of equations is obtained in which form?

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