How do you write the direct linear variation equation for the relationship: y varies directly with x and y = 10 when x = 2? Algebra Graphs of Linear Equations and Functions Direct Variation 1 Answer Nghi N. · Joe D. Apr 15, 2015 Linear equation: #y = 5x# When #x = 2 -> y = 5*2 = 10# 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 3352 views around the world You can reuse this answer Creative Commons License