Question

the cost of pen is Rs 5 . write a linear equation when the cost of x pens is Rs y . Draw the graph of this equation , and find the cost of 3 pens from the graph

Answer 1

linear equation=5x=y

you can draw the graph with the following points

x=0, y=0

x=1, y=5

x=2, y=10

and from the graph locate 3 on x axis and then extend the line in upward direction and where ever the line will intersect you line of linear equation,on that point find the y coordinate and the y coordinate is your answer and your y coorrinate will be 15.

hope it helps you

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