Is 9x + 5y = 0 a direct variation and if so, how do you find the constant? Algebra Graphs of Linear Equations and Functions Direct Variation 1 Answer Nghi N. May 20, 2015 5y = -9x y = (-9/5)x . The constant or slope is (-9/5) 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 2298 views around the world You can reuse this answer Creative Commons License
