Question

y - 3x = 1 in which of the following x and y vary directly with each other for each direct variation State constant of variation​

Answer 1

Answer:

y - 3x = 1 --------(1)

Y = 1 + 3x ------(2)

then put the value of y in equation (1)

(1 + 3x) - 3x = 1

1 + 3x - 3x = 1

multiplying both side of 5.

5 × 1 + 5 × 3x - 5 × 3x = 1 × 5

so,

1 = 1 Ans.

LHS = RHS.