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Ryan Pearson
Mathematics
21 June, 17:00
What is the inverse of the function? f (x) = 3x-1
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Lane Dunn
21 June, 17:30
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The inverse is 1/3 (x+1)
Step-by-step explanation:
y = 3x-1
Exchange x and y
x = 3y-1
Solve for y
Add 1 to each side
x+1 = 3y-1+1
x+1 = 3y
Divide each side by 3
(x+1) / 3 = 3y/3
1/3 (x+1) = y
The inverse is 1/3 (x+1)
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