Question

2. Draw the graph for each linear equation given
below :
(i) y = 3x
(ii) y = - x
(iii) y = - 2x
(iv) y = x
(v) 5x + y = 0 (vi) x + 2y = 0
(vii) 4x - y = 0 (viii) 3x + 2y = 0
(ix) x = -2y​

Answer 1

Answer:

(Take the cost of a notebook to be Rs. x and that of a pen to be Rs. y).

Sol: Let the cost of a notebook = Rs x

The cost of a pen = y

According to the condition, we have

[Cost of a notebook] = 2 × [Cost of a pen]

i.e. [x] = 2 × [Y]

or x = 2y

or x – 2y = 0

Thus, the required linear equation is × – 2y = 0.

Answer 2

there is the solution of the questions