Q6 of 19 Page 278


Draw graph for the data given in the table. Hence find the number of days taken by 12 workers to complete the work.

We can construct a graph using the data given



To find the number of days taken by 12 worker to complete the work draw a line parallel to Y-axis from X = 12 to the curve and from the intersecting point of that line and the curve draw another line parallel to X-axis and the point at which the line intersect the Y-axis will give the value of Y at X = 12.so from the graph at X = 12 Y is found to be 26


More from this chapter

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2

The following table gives the cost and number of notebooks bought.


Draw the graph and hence (i) find the cost of seven note books.


(ii) How many note books can be bought for ₹165.

 3


Draw the graph for the above table and hence find


(i) the value of y if x = 4


(ii) the value of x if y = 12

 4

The cost of the milk per liter is ₹15. Draw the graph for the relation between the quantity and cost. Hence find

(i) the proportionality constant.


(ii) the cost of 3 litres of milk.

 5

Draw the Graph of xy = 20, x, y > 0. Use the graph to find y when x = 5, and to find x when y = 10.