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

5

Step-by-step 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 ;-

, where k is the constant of variation for the relation.

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

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

3x3 = 9 and 2x2 = 4

step-by-step explanation: