• +91 9971497814
  • info@interviewmaterial.com

RD Chapter 7- Introduction to Euclid-s Geometry Ex-7.4 Interview Questions Answers

Question 1 :
Give the geometric representations of the following equations.
(a) on the number line
(b) on the cartesian plane.
(i) x – 2
(ii) y + 3 = 0
(iii) y = 3
(iv) 2x + 9 = 0
(v) 3x – 5 = 0

Answer 1 :

(i) x = 2
(i) on the number line
 
(ii) x = 2 is a line parallel to 7-axis at a distance of 2 units to right of y-axis.
(ii) y = -3 is a line parallel to x-axis at a distance of 3 units below x-axis.
 
(iii) y = 3
(i) y = 3
(ii) y = 3 is a line parallel to x-axis at a distance of 3 units above x-axis.
x = -4.5 is a line parallel to 7-axis at a distance of 4.5 units to left of y-axis.
(ii) x =   is a line parallel to y-axis at a  distance of   unit to right side of y-axis.

Question 2 :
Give the geometrical representation of 2x + 13 = 0 as an equation in
(i) One variable
(ii) Two variables

Answer 2 :

(i) In one variable,
2x + 13 = 0
⇒ 2x = – 13
⇒ x =