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OpenStudy (emilyjones284):
I just need help on the solving part of this question... I understand the beginning, ill give a medal(:. Ill post it below.
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OpenStudy (emilyjones284):
If \[f(x)=\frac{ 1 }{ 2 }x-6\], what is the equation for \[f ^{-1}(x)\]
hartnn (hartnn):
y = (1/2)x -6 x = (1/2)y-6 add 6 to both sides, what u get ?
OpenStudy (emilyjones284):
x+6=1/2y
hartnn (hartnn):
right, now multiply both sides by 2 ....
OpenStudy (emilyjones284):
2(x+6)... should I distribute the 2 because theres an answer where it is distributed and an answer where its not
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hartnn (hartnn):
what do u get after distributing ?
OpenStudy (emilyjones284):
oh wait there is 2(x+6) and 2x+6 so it would have to be 2(x+6) right?
hartnn (hartnn):
yes, after distributing 2x +12 so, 2 (x+6) wouk be correct :)
OpenStudy (emilyjones284):
okay I understand thank you so much (:
hartnn (hartnn):
welcome again ^_^
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