If y varies directly with x and y=10 when k=10, what is the value of x? Algebra Graphs of Linear Equations and Functions Direct Variation 1 Answer BRIAN M. May 3, 2016 x=1 Explanation: The equation for direct variation is y =kx y = 10 k=10 x = ? y=kx 10=10x 10/10 =(cancel 10x)/cancel10 1=x 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 5629 views around the world You can reuse this answer Creative Commons License