Question

If 2x - 5y = 0, then in this case x and y vary. (a) directly (b) inversely (c) Neither (a) nor (b) (d) Sometimes directly and sometimes inversely.​

Answer 1

For the equation 2x-5y=0, x and y vary directly. (Option a)

According to the question,

                                       2x - 5y = 0

                                        2x = 5y

                                        $\frac{x}{y} = \frac{5}{2}$   (which is a constant)

As a result, we can deduce that x and y fluctuate linearly or directly.