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Q: Find an equation of variation where y varies directly as x and y 28 when x 7.?
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Find an equation of variation where y varies directly as x One pair of values is y equals 80 when x equals 40?

Find an equation of variation where y varies directly as x. One pair of values is y = 80 when x = 40


Find an equation of variation where y varies directly as x and y equals 28 when x equals 7?

4x= y


Find an equation of variation where y varies directly as x and y equals 500 when x equals 50?

y = 10x


Find an equation of variation where y varies directly as x and y equals 8 when x equals 2 find y when x equals 10?

40


Find an equation of variation where y varies directly as x and y equals 15 when x equals 5 find y when x equals 19?

57


Find an equation of variation where y varies directly as x and y equals 2 when x equals 10 find y when x equals -25?

y = -5


Find an equation of variation where y varies directly as x and y equals 10 when x equals 5 find y when x is 4?

y = 8


Find a equation of variation where y varies directly as x and y equals 0.8 when x equals 0.4?

direct variation: y = kx y = kx k = y/x = 0.8/0.4 = 2


Find the variation constant and an equation of variation where y varies directly as x and y equals 10 when x equals 37?

y = kx: 10 = 37k so k = 10/37 and y = 10x/37


If an equation of variation where y varies directly as x and y equals 15 when x equals 5 find when x equals 19?

y = 3x y = 3*19 = 57


How do you find the equation for a direct variation?

find the direct variation equation 3x+y=0


When x is 2.25 y is 6.75 y varies directly with x write the direct variation equation in the form y kx. direct variation equation find y when x is 4.2. when x 4.2 y?

y = 3x because when x is 2.25 y is 6.75 a ratio of 1 to 3 and so when x is 4.2 y is 12.6