Question
Plot the points (5, 0), (5, 1), (5, 8). Do they lie on a line? What is your observation?
✓
Answer
- Take a point O on the graph paper and draw horizontal and vertical lines OX and OY respectively.
- Then, let on the x-axis and y axis 1cm represents 1 unit.
- In order to plot point (5, 0), we start from the origin O and move 5cm along OX. The point we arrive at is point (5, 0).
- To plot point (5, 1), we move 5cm along OX and 1cm along OY. The point we arrive at is point (5, 1).
- To plot point (5, 8), we move 5cm along OX and 8cm along OY. The point we arrive at is point (5, 8).
- From the graph below, it can be seen that the points lie on a line parallel to y-axis. This is because they have the same x-coordinate.
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