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Question
Write the x-coordinate (abscissa) of the given point.
(7, 3)
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Solution
The x-coordinate of the point (7, 3) is 7.
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Find the coordinates of points A, B, C, D in Fig. 27.7.
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| Length of a side (in cm): | 1 | 2 | 3 | 4 | 5 |
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Draw a graph to illustrate this information.
The distance of the point (3, 5) from the y-axis is 5.
The points (3, 5) and (5, 3) represent the same point.
Match the coordinates given in Column A with the items mentioned in Column B.
| Column A | Column B |
| (1) (0, 5) | (a) y coordinate is 2 × x - coordinate + 1. |
| (2) (2, 3) | (b) Coordinates of origin. |
| (3) (4, 8) | (c) Only y–coordinate is zero. |
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| (6) (5, 0) | (f) The distance from y-axis is 2. |
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(0, 5)
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Draw a parallelogram ABCD on a graph paper with the coordinates given in Table I. Use this table to complete Tables II and III to get the coordinates of E, F, G, H and J, K, L, M.
| Point | (x, y) |
| A | (1, 1) |
| B | (4. 4) |
| C | (8, 4) |
| D | (5, 1) |
Table I
| Point | (0.5x, 0.5y) |
| E | (0.5, 0.5) |
| F | |
| G | |
| H |
Table II
| Point | (2x, 1.5y) |
| J | (2, 1.5) |
| K | |
| L | |
| M |
Table III
Draw parallelograms EFGH and JKLM on the same graph paper.
Plot the points (2, 4) and (4, 2) on a graph paper, then draw a line segment joining these two points.
