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OpenStudy (anonymous):
FAN AND MEDAL Question 4.4. If f(x) varies directly with x, and f(x) = 56 when x = 8, find the value of f(x) when x = 2 4 7 8 14
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OpenStudy (adamk):
What is the equation for direct variation?
OpenStudy (anonymous):
idk @AdamK
OpenStudy (adamk):
y = kx
OpenStudy (adamk):
So do 56 = 8k and solve for k Then, use k and 2 as x in the equation to find y
OpenStudy (anonymous):
SO its B? @AdamK
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OpenStudy (butterflydreamer):
like Adam said, we'd want to solve for k first. So can you tell me what k would equal to if you solve 56 = 8k?
OpenStudy (butterflydreamer):
|dw:1424398649871:dw|
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