exercise 10.2 (ncert class 11th maths) – eduhilfe

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Asked: August 22, 2020In: NCERT 11th Maths

20. By using the concept of equation of a line, prove that the three points (3, 0), (– 2, – 2) and (8, 2) are collinear.

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Asked: August 22, 2020In: NCERT 11th Maths

19. Point R (h, k) divides a line segment between the axes in the ratio 1: 2. Find equation of the line.

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Asked: August 22, 2020In: NCERT 11th Maths

18. P (a, b) is the mid-point of a line segment between axes. Show that equation of the line is $\frac{x}{a} + \frac{y}{b} = 2$

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Asked: August 22, 2020In: NCERT 11th Maths

17. The owner of a milk store finds that, he can sell 980 litres of milk each week at Rs 14/litre and 1220 litres of milk each week at Rs 16/litre. Assuming a linear relationship between selling price and demand, how many litres could he sell weekly at Rs 17/litre?

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Asked: August 22, 2020In: NCERT 11th Maths

16. The length L (in centimetrs) of a copper rod is a linear function of its Celsius temperature C. In an experiment, if L = 124.942 when C = 20 and L= 125.134 when C = 110, express L in terms of C.

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Asked: August 22, 2020In: NCERT 11th Maths

15. The perpendicular from the origin to a line meets it at the point (–2, 9), find the equation of the line.

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Asked: August 22, 2020In: NCERT 11th Maths

14. Find equation of the line through the point (0, 2) making an angle $\frac{2\pi}{3}$ with the positive x-axis. Also, find the equation of line parallel to it and crossing the y-axis at a distance of 2 units below the origin.

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Asked: August 22, 2020In: NCERT 11th Maths

13. Find equation of the line passing through the point (2, 2) and cutting off intercepts on the axes whose sum is 9.

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Asked: August 22, 2020In: NCERT 11th Maths

12. Find the equation of a line that cuts off equal intercepts on the coordinate axes and passes through the point (2, 3).

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Asked: August 22, 2020In: NCERT 11th Maths

11. A line perpendicular to the line segment joining the points (1, 0) and (2, 3) divides it in the ratio 1: n. Find the equation of the line.

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