Find the constant of variation for the relationship f(x)= 40x.
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F(x) is another way of saying y, so you're given y = 40x, the formula for direct variation is y = kx where k, 40, is the constant making a table: x|y ----- 1 | 40 2| 80 3| 120 and so on, So if you divide both sides by x you have y/x= k Take a value from that table, 120/3 = 40 80/2 = 40 40/1 = 40
There's also indirect variation
wow thanks much!.. n yeah there is..
yw
sorry I did not know the answer!! :) im not that good
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