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 2087 views around the world You can reuse this answer Creative Commons License
