Class 9 Exam  >  Class 9 Notes  >  Lab Manuals for Class 9  >  Viva Voce: Find a Hidden Picture by Plotting

Viva Voce: Find a Hidden Picture by Plotting | Lab Manuals for Class 9 PDF Download

Q.1. Is it correct to say that horizontal axis is Y-axis and vertical axis is X-axis?

No, because in standard coordinate system horizontal line is always X-axis and vertical line is always Y-axis.


Q.2. Are there any points which do not lie in any of the quadrants? If yes, then where do they lie?

Yes, they He on axes.


Q.3. What would be the value of (abscissa A – abscissa B), if two points are A(3, 4) and B (-2, 5)?

3-(-2) = 3+ 2 = 5


Q.4. x-coordinate and y-coordinate taken together are called …………..?

cartesian coordinates


Q.5. Are the abscissae of all the points on the Y-axis zero?

Yes, because their distance from Y-axis is zero as they lie on Y-axis.


Q.6. Are the ordinates of all the points on Y-axis zero?

No, because their distance from X-axis is not zero.


Q.7. What is the coordinates of a point at origin?

(0,0)


Q.8. What is the maximum number of abscissa points on the X-axis?

Infinite


Q.9. What is the perpendicular distance of the point (6, 4) from the X-axis?

4 units


Q.10. If any line is perpendicular to the X-axis, then which axis is parallel to it?

If any line is perpendicular to the X-axis, then it is parallel to Y-axis.

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