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 one year ago
Determine whether y varies directly with x. If so, find the constant of variation k and write the equation.
x:
7
13
19
25
y:
11.2
20.8
30.4
40
A. yes; k = 1.6; y = 1.6x
B. yes; k = 6; y = 6x
C. yes; k = 7; y = 7x
D. no
 one year ago
Determine whether y varies directly with x. If so, find the constant of variation k and write the equation. x: 7 13 19 25 y: 11.2 20.8 30.4 40 A. yes; k = 1.6; y = 1.6x B. yes; k = 6; y = 6x C. yes; k = 7; y = 7x D. no

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whpalmer4
 one year ago
Best ResponseYou've already chosen the best response.0Divide each value of y by the corresponding value of x. If the answer is the same each time, y varies directly with x and the quotient is the variation constant k.

Awstinf
 one year ago
Best ResponseYou've already chosen the best response.0y varies directly with x

vinnv226
 one year ago
Best ResponseYou've already chosen the best response.0No, I believe thats the equation for inversely proportional.

Awstinf
 one year ago
Best ResponseYou've already chosen the best response.0my bad yeah youre right

vinnv226
 one year ago
Best ResponseYou've already chosen the best response.0For directly proportional, y=kx

Awstinf
 one year ago
Best ResponseYou've already chosen the best response.0sorry im trying to lead him to the answer not list it

vinnv226
 one year ago
Best ResponseYou've already chosen the best response.0Yep, the y values are 1.6 times the x values, so the answer is A.

whpalmer4
 one year ago
Best ResponseYou've already chosen the best response.0If the quotient for each y/x =1.6, then it is direct variation with k =1.6
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