CLASS:- 9 EXERCISE:- 3.3 COORDINATE GE0METRY ALL SOLUTION

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EXERCISE 3.1 EXERCISE 3.2

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1.    In which quadrant or on which axis do each of the points (– 2, 4), (3, – 1), (– 1, 0), (1, 2) and (– 3, – 5) lie? Verify your answer by locating them on the Cartesian plane.

solution :

• The point (–2, 4) lies in quadrant II.
• The point (3, -1) lies in quadrant IV.
• The point (–1, 0) lies on negative x axis.
• The point (1, 2) lies in quadrant I.
• The point (–3, -5) lies in quadrant III.

2.    Plot the points (x, y) given in the following table on the plane, choosing suitable units of distance on the axes.

solution :

Let 1 unit = 1 cm

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EXERCISE 3.1 EXERCISE 3.2