Well-designed AP Board Solutions Class 9 Maths Chapter 3 Co-Ordinate Geometry Exercise 3.2 offers step-by-step explanations to help students understand problem-solving strategies.

## Co-Ordinate Geometry Class 9 Exercise 3.2 Solutions – 9th Class Maths 3.2 Exercise Solutions

Question 1.

Write the answer of. each of the following questions: .

i) What is the name of horizontal and the vertical lines drawn to determine the position of any point in the Cartesian plane?

ii) What is the name of each part of the plane formed by these two lines?

iii) Write the name of the point where these two lines intersect.

Solution:

i) The horizontal line is called X-axis and the vertical line is called Y-axis.

ii) These two lines forms four quadrants, they are Q_{1}, Q_{2}, Q_{3}, Q_{4}.

iii) The point where these two lines intersect is called origin (0).

Question 2.

See below graph and write the following:

i) The coordinates of B.

ii) The coordinates of C.

iii) The point identified by the coordi-nates (-3, -5).

iv) The point identified by the coordi-nates (2,-4).

v) The abscissa of the point D.

vi) The ordinate of the point H.

vii) The coordinates of the point L.

viii) The coordinates of the point M.

Solution:

i) The coordinates of B are (-5, 2).

ii) The coordinates of C are (5, -5).

iii) The jSoint identified by the coordinates (-3, -5) is ‘E’.

iv) The point identified by the coordinates (2, – 4) is ‘G’. ‘

v) The abscissa of the point D is (6).

(∵ abscissa means nothing but X-coordinate)

vi) The ordinate of the point H is (-3).

(∵ y – coordinate)

vii) The coordinates of the point L is (0, 5).

viii) The coordinates of the point M is (-3, 0).