Asked by Sarah
How do I set up this equation?
If Y varies directly as X and Y = 12 when X = 3, find Y when X = 16
If Y varies directly as X and Y = 12 when X = 3, find Y when X = 16
Answers
Answered by
^Quen^
If y varies directly with x, then there must be some number "k" such as:
y=k*x
Y = 12 when X = 3...So?
12=k*3
k=12/3
k=4
Since you found k, then you can plug in to find Y.
Y= 4*16
Y= 64
y=k*x
Y = 12 when X = 3...So?
12=k*3
k=12/3
k=4
Since you found k, then you can plug in to find Y.
Y= 4*16
Y= 64
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