Suppose y varies directly with x and y=24 when x=8. What is the value of when x=10? Algebra Graphs of Linear Equations and Functions Direct Variation 1 Answer Binayaka C. · Geoff K. Jan 7, 2017 #y=30# Explanation: #y prop x or y =k*x or k=y/x ; #, k is constant of variation. # y=24 ;x =8 :. k=24/8=3 :. y= 3x # So When #x=10 ; y=3*10=30# #y=30# [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 8214 views around the world You can reuse this answer Creative Commons License