The point (12,9) is included in a direct variation. What is the constant of variation?

Answer 1

To find the constant of variation in a direct variation, we can use the formula:

y = kx

Where y and x represent the variables, and k represents the constant of variation.

Given that the point (12,9) is included in the direct variation, we can plug in these values to solve for k.

9 = k(12)

Dividing both sides of the equation by 12:

9/12 = k

Simplifying:

3/4 = k

Therefore, the constant of variation is 3/4.