Page 44 - Mathematics Class - X

Viva-Voce

1. What is the distance of the point (5, 7) from X-axis?

Ans. 7 units

2. What will be the distance of the point (2, 4) from Y-axis?
Ans. 2 units

3. Suppose the coordinates of a point ‘P’ lie on X-axis. Then, what are the coordinates of P?

Ans. The coordinates are (x, 0).

4. Let P(x , y ) and Q(x , y ) be two points, what is the distance between these two points?
1 1 2 2

2
Ans. The distance between P and Q is (x − 2 x 1 ) + 2 (y − 2 y 1 ) units.
5. What will be the distance of a point Q(a, b) from the origin?

2
2
Ans. a + b units

MCQs

1. In Cartesian system, two perpendiculars intersect each other at
a) Right side of plane b) Left side of plane

c) Origin d) None of these
2. How many quadrants are there in a Cartesian system?

a) 2 b) 4 c) 6 d) 8
3. Point (4, 2) can be found in

a) Ist quadrant b) IInd quadrant c) IIIrd quadrant d) IVth quadrant
4. Point (9, 0) can be found at

a) X-axis b) Y-axis c) Ist quadrant d) IIIrd quadrant
5. The distance between two points in a Cartesian plane can be find out by
a) Pythagoras theorem b) Distance formula

c) Scales only d) both (b) and (c)

Answers: 1. c) Origin 2. b) 4 3. a) Ist quadrant
4. a) X-axis 5. b) both (b) and (c)

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