13-06-2016
Mathematics

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What is the inverse of y = 3x + 9?

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eternal3fear eternal3fear

13-06-2016

to find the inverse, you flip the x and y and solve for the new y

x = 3y + 9

subtract 9 from both sides
3y = x - 9

divide through by 3
y = (1/3)x - 3

therefore your inverse equation is
y = (1/3)x - 3

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