y varies inversely as twice x. When x = 2, y = 5. Find y when x = 10.

y varies inversely as twice x. When x = 2, y = 5. Find y when x = 10.
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1 Answer

y=-x+konst

line go thru point (2,5)

at x=2, y=-2+konst=5, so konst=7

tu find y at x=10:

y=-x+7

y=-10+7

y=-3
by

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