Question

If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?

Answer 1

c

Explanation:

on edge

Answer 2

Answer: 5

Explanation:

Let k be the constant of variation for this relation.

If y varies directly as x, then the equation of direct variation is given by ;-

`y=kx`, where k is the constant of variation for the relation.

`\Rightarrow\ k=(y)/(x)`

Now, for the given value of y = 20 and x=4, the value of constant of variation is given by :-

`\Rightarrow\ k=(20)/(4)=5`

Hence, the value of constant of variation for this relation k = 5.