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Suppose y varies directly with x, and y = 10 when x = –3. What direct variation equation relates x and y? What is the value of y when x = –1?
 2 years ago
 2 years ago
Suppose y varies directly with x, and y = 10 when x = –3. What direct variation equation relates x and y? What is the value of y when x = –1?
 2 years ago
 2 years ago

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aroubBest ResponseYou've already chosen the best response.2
There is two ways to do this: 1) y1/x1=y2/x2 10/3= y/1 10(1)=y(3) 10=3y y=10/3 2) y=kx 10=k (3) k=10/3 y=kx y=10/3 (1) y=10/3
 2 years ago

amistre64Best ResponseYou've already chosen the best response.0
direct variation is of the form y = x ; not y= x+b
 2 years ago
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