Question

The cost of petrol in a city is Rs.50 per litre. Taking quantity of petrol as x litre and total cost as Rs.y.
Write a linear equation for this information and draw its graph.​

Answer 1

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Cost of 1 litre of petrol is Rs 50.

Thus, cost of x litres of petrol = Rs 50x

It is given that the cost of x litres of petrol is Rs y.

∴y = 50x

⇒ 50x - y = 0 which is the required linear equation representing the given situation.

Answer 2

Step-by-step explanation:

Cost of 1 litre of petrol is Rs 50.

Thus, cost of x litres of petrol = Rs 50x

It is given that the cost of x litres of petrol is Rs y.

∴y = 50x

⇒ 50x - y = 0 which is the required linear equation representing the given situation.