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OpenStudy (anonymous):
If f(x) = 12x + 7, what is f^–1(x) ?
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OpenStudy (anonymous):
would it be f^-1 (12x + 7) ?
OpenStudy (saifoo.khan):
y = 12x + 7 Solve for "x".
OpenStudy (hoblos):
y=12x +7 switch x & y and solve for y
OpenStudy (hoblos):
x=12y +7 12y=x-7 y=(1/12)x - 7/12 so f^–1(x)= (1/12)x - 7/12
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