Question 3 Draw the graph of the equation represented by a straight line which is parallel to the X-axis and at a distance 3 units below it.
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Solution
Any straight line parallel to X-axis and below the x axis is in the negative direction of y-axis is given by y = - k, where k is the distance of the line from the x-axis. Here, k = 3 So, equation of the line will be y=-3.