If y varies directly with x, Write an equation relating x and y when y = -30 and x = 6.Group of answer choices-6x = -30yy = 5xy = -5x6x = -30y
Question
If y varies directly with x, Write an equation relating x and y when y = -30 and x = 6.Group of answer choices-6x = -30yy = 5xy = -5x6x = -30y
Solution
If y varies directly with x, it means that y = kx, where k is the constant of variation.
Given that y = -30 when x = 6, we can substitute these values into the equation to find the value of k.
-30 = k * 6
To solve for k, divide both sides of the equation by 6:
k = -30 / 6
k = -5
So, the equation that relates x and y is y = -5x.
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