Question

The cost of a pencil box is thrice the cost of a pencil . Write a linear equation in two variables to represent this statement. Find four solutions and draw the graph for this equation. (Take the cost of a pencil box to be ₹ x and that of a pencil to be ₹ y) ​

Answer 1

Answer:

Let the cost of a pen be x and the cost of a pencil be y

According to the statement, cost of a pen is thrice the cost of a pencil

⇒x=3y

⇒x−3y=0 which is a linear equation in two variable