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If y = –54 when x = –9, find y when x = 6. a. y = –6x; –36 c. y = 6x; 42 b. y = 5x; 36 d. y = 6x; 36
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Asked 4/18/2014 7:53:14 AM
Updated 4/18/2014 9:03:12 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [4/18/2014 9:01:36 AM]
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User: If y = –54 when x = –9, find y when x = 6. a. y = –6x; –36 c. y = 6x; 42 b. y = 5x; 36 d. y = 6x; 36

Weegy: x=-1 and x=-1/5 for the equation 5x^2+6x=-1
migzptz|Points 7632|

Question
Asked 4/18/2014 7:53:14 AM
Updated 4/18/2014 9:03:12 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [4/18/2014 9:01:36 AM]
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3
If you mean y varies directly as x, then y = kx
y = –54 when x = –9,
so k = y/x = -54/-9 = 6
The equation is y = 6x
when x = 6, y = 6(6) = 36
Added 4/18/2014 9:03:12 AM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [4/18/2014 9:04:44 AM]
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