# Direct Variation - Page 4

Questions

- If y varies directly with x, and y=36 when x=9, how do you find x when y=52?
- Is 2x+3y=0 a direct variation and if so, what is the constant?
- Y varies jointly as the cube of x and the square root of w, and Y = 128 when x = 2 and w = 16. Find Y when x = 1/2 and w = 64? P.S. Thank you for helping me for this problem.
- How do you name the Constant of Variation in the equation, #y = 3x#?
- If y varies directly with x, and y = 45 when x = 5, how do you write the direct linear variation equation and what is the constant?
- How do you know if an equation #y=0.5x# is a direct variation And if it is how do you find the constant of the variation?
- The variables x=-3 and y=9 varies directly. How do you write an equation that relates the variables and find y when x=8?
- Is #y=7-3x# a direct variation equation and if so, what is the constant of variation?
- How do you name the Constant of Variation for a line passing through (0,0) and (4,-3)?
- Is #8x + 9y = 10# a direct variation and if so what is the constant?
- How do you determine the constant of variation for the direct variation given #-6y=-3x#?
- The value of y varies directly with x, and y = 6 when x = 18, how do you find y when x = 12?
- Is #y-x=4# a direct variation equation?
- How do you find the equation given that y varies directly with x, write the linear function relating the two variables and when x=3 y=6?
- Is #f(x)=2# a direct variation equation and if so what is the constant?
- Is the equation #y=x-2# a direct variation? If it is, how do you find the constant of variation?
- If y varies directly with x, and x = -6 when y = 2 and how do you find x when y = -9?
- How do you write an equation of the direct variation that includes the given point (5, 1)?
- Is #y =4.2/x# a direct variation equation and if so, what is the constant of variation?
- The variables x=2 and y=7 varies directly. How do you write an equation that relates the variables and find y when x=8?