4 years ago

What is the inverse for this problem?

1 answer:

8 0

Replace f(x) with y:

y = 3x +2

interchange the variables:

x = 3y +2

switch the equation so the Y is on the left side:
3y +2 = x

subtract 2 from each side:
3y = x-2

divide each term by 3 to get y alone:

y = (x-2)/3

replace y with inverse of F(x) which is f^-1(x):

f^-1(x) = -(x-2)/3

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