Note on Plotting in Graph

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Plotting points in coordinate plane

Plotting points are the process of locating a point whose co-ordinates are given. The plotting of points can be done on graph paper.
Suppose we have to plot points A(4, 4), B(-4, 5), C(-2, -4) and D(5, -3). The points A(4, 4) lies in the 1st quadrant. To plot this point count 4 units along OX to the right side of 0 and then count 4 units upward and mark the point thus obtained as shown in the figure and then write A(4, 4) near it. The point B(-4, 5) lies in the 2nd quadrant. Count 4 units from origin along OX' to the left of O and then count 5 unit upward.
Marks the point thus obtained as shown in the figure and then write B(-4, 5) near it. The point C(-2, -4) line x origin n the third quadrant. Count 2 units from origin O along OX' to the left of O and then 4 units downward. Mark the point thus obtained as shown in the figure and write C(-2, -4) near it. The point D(5, -3) lies in the 4th quadrant. Count 5 unit from origin O along OX to the right of O and then 3 units downward. Mark the point so obtained as shown in the figures.

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Plotting in Graph

  • Plotting points are the process of locating a point whose co-ordinates are given.
  • The plotting of points can be done on graph paper.
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Very Short Questions

Solution:

The point A(2, 6), B(-6, 4), C(-3, -5) and D(3, -4) are plotted in the adjoining graph.

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Solution;

The coordinates of A, B and C are (1, 2), (-3, -1) and (2, -3) respectively.

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