Why is Y = -X + B it's own inverse, I can illustrate this graphically but not algebraically. can any one help me with this?? Thank you
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Originally Posted by i_cow044 Why is Y = -X + B it's own inverse, I can illustrate this graphically but not algebraically. can any one help me with this?? Thank you functions are inverses if $\displaystyle (f \circ f)(x)=x$ so lets try it $\displaystyle (f \circ f)(x)=f(f(x))=-(-x+b)+b=x-b+b=x$ yay!!!
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