A shopkeeper sells pens so that the total cost $y$ (in Rs) for $x$ pens is $y = 8 x$ .
From the straight-line graph, find the cost of 7 pens. (Enter the number of rupees.)

Question

A shopkeeper sells pens so that the total cost y (in Rs) for x pens is y = 8x. From the straight-line graph, find the cost of 7 pens. (Enter the number of rupees.)

Accepted Answer

56. y = 8x = 8(7) = 56. So 7 pens cost Rs 56, read off the point (7, 56) on the line.

A shopkeeper sells pens so that the total cost $y$ (in Rs) for $x$ pens is $y = 8 x$ .
From the straight-line graph, find the cost of 7 pens. (Enter the number of rupees.)

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 9 Graph of a Linear Equation practice

A shopkeeper sells pens so that the total cost y (in Rs) for x pens is y=8x.From the straight-line graph, find the cost of 7 pens. (Enter the number of rupees.)

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 9 Graph of a Linear Equation practice

A shopkeeper sells pens so that the total cost $y$ (in Rs) for $x$ pens is $y = 8 x$ .
From the straight-line graph, find the cost of 7 pens. (Enter the number of rupees.)