## Maharashtra State Board Class 9 Maths Solutions Chapter 7 Co-ordinate Geometry Practice Set 7.1

Question 1.

State in which quadrant or on which axis do the following points lie.

i. A(-3, 2)

ii. B(-5, -2)

iii. K(3.5, 1.5)

iv. D(2, 10)

V. E(37, 35)

vi. F(15, -18)

vii. G(3, -7)

viii. H(0, -5)

ix. M(12, 0)

x. N(0, 9)

xi. P(0, 2.5)

xii. Q(-7, -3)

Solution:

Question 2.

In which quadrant are the following points?

i. whose both co-ordinates are positive.

ii. whose both co-ordinates are negative.

iii. whose x co-ordinate is positive and the y co-ordinate is negative.

iv. whose x co-ordinate is negative and y co-ordinate is positive.

Solution:

i. Quadrant I

ii. Quadrant III

iii. Quadrant IV

iv. Quadrant II

Question 3.

Draw the co-ordinate system on a plane and plot the following points.

L(-2, 4), M(5, 6), N(-3, -4), P(2, -3), Q(6, -5), S(7, 0), T(0, -5)

Solution:

**Maharashtra Board Class 9 Maths Chapter 7 Co-ordinate Geometry Practice Set 7.1 Intext Questions and Activities**

Question 1.

Plot the points R(-3,-4), S(3,-l) on the same co-ordinate system. (Textbook pg. no. 93)

Steps for plotting the points:

i. Draw X-axis and Y-axis on the plane. Show the origin.

ii. Draw a line parallel to Y-axis at a distance of 3 units in the -ve direction of X-axis.

iii. Draw another line parallel to X-axis at a distance of 4 units in the -ve direction of Y-axis.

iv. Intersection of these lines is the point R (-3, -4).

v. The point S can be plotted in the same manner.