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What is the inverse of the given function? y = 3x + 9 y = 1/3x + 3 y = 3x – 3 y = 3x + 3 y = 1/3x – 3
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5 votes
What is the inverse of the given function?

y = 3x + 9



y = 1/3x + 3

y = 3x – 3

y = 3x + 3

y = 1/3x – 3

User Lucas Dias
by
7.7k points

2 Answers

3 votes

y=1/3x­-3 is the answer. 100% sure!

User Eabraham
by
8.7k points
4 votes
Swap x and y, then solve for y.
x = 3y + 9
x - 9 = 3y . . . . . . subtract 9
(1/3)x - 3 = y . . . divide by 3

This matches the last selection
y = 1/3x - 3
User Alcohol
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7.1k points
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