Question

If two quantities x and y vary directly, then​

Answer 1

Answer:

x+y

Step-by-step explanation:

x+y is constant....

Answer 2

Answer:

$a.) \: \frac{x}{y} \: is \: a \: constant$

We can say this as if x is directly proportional to y, then we can say that x=ky (where k is some constant).

Now if we bring y to LHS , we can write that a. is the correct option.

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