NCERT Mathematics Class 9 Exemplar Ch 3 Coordinate Geometry Part 8
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Q.6. In Fig. 3.6, LM is a line parallel to the y-axis at a distance of 3 units.
(i) What are the coordinates of the points P, R and Q?
LM is a Line Parallel Y-Axis at a Distance of 3 Units
(ii) What is the difference between the abscissa of the points L and M?
Answer: (i) P(3, 2), R(3, 0), Q(3, –1) (ii) 0
Q.7. In which quadrant or on which axis each of the following points lie?
Answer: II, IV, x-axis, I, III
Q.8. Which of the following points lie on y-axis?
Answer: C, D, E, G
9.Plot the points (x, y) given by the following table. Use scale 1 cm = 0.25 units
X | 1.25 | 0.25 | 1.5 | -1.75 |
y | -0.5 | 1 | 1.5 | -0.25 |
Plot the Point
Answer: Let X’OX and Y’OY be the coordinate axes. Plot the given points and on the graph paper. After plotting, we get the points and .
Q.10. A point lies on the x-axis at a distance of 7 units from the y-axis. What are its coordinates? What will be the coordinates if it lies on y-axis at a distance of –7 units from x-axis?
Answer: (7, 0), (0, –7)