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douglas12
Group Title
Determine whether y varies directly with x. If so, find the constant of variation k.
–7y = –3x
A. yes; 3/7
B. yes; 7/3
C. yes; 3
D. no
 one year ago
 one year ago
douglas12 Group Title
Determine whether y varies directly with x. If so, find the constant of variation k. –7y = –3x A. yes; 3/7 B. yes; 7/3 C. yes; 3 D. no
 one year ago
 one year ago

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Jhannybean Group TitleBest ResponseYou've already chosen the best response.1
First ask yourself  what is the formula for Direct Variation? When you google this  you'll find that this formula is shown as \(\large \color{green}{ y = kx}\). We've got \(\large \color{red}{7y=3x}\) How do we change this to fit the form of direct variation? We divide both sides of the //equation by 7 \[\large \cfrac{7y}{7} = \cfrac{3}{7}x\] Simplifying both sides of the equation, what do we get?
 one year ago

Jhannybean Group TitleBest ResponseYou've already chosen the best response.1
That's good. \[\large y=\color{blue}{\cfrac{3}{7}}x\]\(\large \cfrac{3}{7}\) is out "k" value.
 one year ago

douglas12 Group TitleBest ResponseYou've already chosen the best response.0
ok thanks
 one year ago

Jhannybean Group TitleBest ResponseYou've already chosen the best response.1
no problem :)
 one year ago

Jhannybean Group TitleBest ResponseYou've already chosen the best response.1
Thank you :)
 one year ago
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