algebra

Suppose that y varies directly with x, and y=10 when x=5. What direct variation equation relates x and y? What is the value of y when x=2?
A. y=2x; 4
B. y= 1/2x; 1
C. y=-2x; -4
D. y= 1/10x; 1/5

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  1. y varies directly with x -----> y = kx
    plug in the given values of x and y and you can find k
    Now you have the equation.
    replace x with 22 and find y

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