Question

If x is directly proportional to Y and x is equal to 7 and y equal to 21 find the constant of variation

Answer 1

Answer:

Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x, and y = 21 when x = 7, the constant of variation is k = = 3. Thus, the equation describing this direct variation is y = 3x

Step-by-step explanation:

the answer is 3

Answer 2

Answer:

the constant variation is 3x