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ThatCreepyBoy:
Given the function f(x) = 3x, find the value of f−1(27). f−1(27) = 1 f−1(27) = 3 f−1(27) = 9 f−1(27) = 81
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Vocaloid:
if y = 3x, then we can switch x and y to find the inverse x = 3y solve for y again
ThatCreepyBoy:
v.v I didn't notice that you commented on here sorry
ThatCreepyBoy:
I don't understand v.v
SkyVoltage43:
f(x)=27 when x=9. The point is then (9, 27). If we switch places with x and y, we get (27, 9). f-1(27) = 9
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