Q5 of 39 Page 15

Find the perpendicular distance of point P(1, -3) from the y-axis.

Concept Used:


For a point P(x, y) the perpendicular distance from y-axis is x.


Explanation:


For point P(1, -3). The plot looks like:



Hence, the perpendicular distance of P(1, -3) from y-axis is 1 unit.


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Find the coordinate of point P in the graphs shown below:


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Plot Q(-1, -5) on graph paper.

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By plotting the points A(3, 0), B(6, 1.5), C(9, 3) and D(-3, -3), prove that they all lie in a straight line.

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The following line graph shows the yearly sales figures for a manufacturing company.

A. What were the sales in (i) 2002 (ii) 2006?


B. What were the sales in (i) 2003 (ii) 2005?


C. Compute the difference between the sales in 2002 and 2006.


D. In which year was there the greatest difference between the sales as comparedto its previous year?