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Mathematics

Graphical solution of linear inequalities in two variables

In this Class 11 Mathematics topic from the chapter Linear Inequalities, students learn how to represent a linear inequality in two variables on the Cartesian plane. They study how to draw the boundary line, decide whether it is included or excluded, and identify the correct half-plane by testing a point. The topic also explains how multiple inequalities can be represented together to find their common feasible region, helping students interpret solutions visually and connect algebraic conditions with graphs.

Hard · Level 5 · 25 questions

Practice questions

01Choose the correct option about the boundary line and shaded part for (x-2y>4).

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02In the first quadrant, what is the solution region of (3x+2y\geq 12)?

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03What are the vertices of the solution region of the system (x+y\leq 5), (x-y\geq 1), (y\geq 0)?

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04What is the correct type of boundary lines in the graph of (x+2y<8), (2x+y\leq 8)?

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05What conclusion does the point ((2,3)) give for the system (x+2y\leq 8), (3x-y>1)?

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06Rewrite (4x-y\leq 8) in terms of (y) and choose the correct side of the graph.

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07If the shaded part is above the (x)-axis, to the right of the (y)-axis, and below (2x+y=10) with boundary, which system of inequalities represents it?

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08What is the graphical solution of the system (x+y\leq 4), (x+y\geq 7)?

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09What is the area of the triangle formed by (2x+3y\leq 12) in the first quadrant?

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10What type of solution region is formed by (x+y<6), (x\geq 2), (y\geq 1)?

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11What will be the solution region of (x\leq 3), (y\leq 2), (x+y\geq 10)?

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12Which point satisfies both inequalities (2x-y<1), (x+y\geq 4)?

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13Which side will be shaded for the inequality (3x-2y\leq 6)?

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14If the boundary line (x+y=5) is not included and the origin is not shaded, which inequality is correct?

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15What are the vertices of the solution region of (x\geq 0), (y\geq 0), (x+2y\leq 6), (2x+y\leq 6)?

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16Choose the correct statement for the first-quadrant graph of (x+3y\leq 9).

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17Which inequality represents the open half-plane below the line (y=2x+1)?

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18What type of graphical solution does (5x+2y\geq 10) have in the first quadrant?

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19What are the vertices of the solution region of (x-y\leq 0), (x+y\leq 4), (x\geq 0)?

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20Why is the point ((3,2)) not valid for the system (x+2y<7), (2x+y\leq 8)?

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21The boundary line passes through ((4,0)) and ((0,2)), the line is included, and the origin is not a solution. Which inequality is correct?

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22In the common first-quadrant region of (2x+y\leq 8), (x+2y\leq 8), what is the maximum value of (x+y)?

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23What is the common region for the system (y\geq x+1), (y\leq -x+5)?

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24With solid boundary (2x-5y=10), which inequality is correct if the side containing the origin is not taken?

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25What are the vertices of the solution region of (3x+y\leq 6), (x-y\geq 0), (y\geq 0)?

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