Is y=12xy=12x a direct variation equation and if so, what is the constant of variation? Algebra Graphs of Linear Equations and Functions Direct Variation 1 Answer Binayaka C. Jun 1, 2016 1212 is the constant of variation. Explanation: y prop x or y =k*x =12x :. k=12 is the constant of variation [Ans] Answer link Related questions What is Direct Variation? What does direct variation look like on a graph? What are examples of direct variation? How do you determine if a function is a direct variation when given a table? How do you write direct variation equations? What is the constant of proportionality "k"? Why is y=2x-1 not a direct variation? How do you graph the direct variation equation y=-\frac{1}{6}x? What is the direct variation equation if y varies directly with x, and y=7.5 when x=2.5? What is the direct variation equation if y varies directly with x, and y=2 when x=4? See all questions in Direct Variation Impact of this question 3434 views around the world You can reuse this answer Creative Commons License