Question 1188797

to find the inverse of {{{f(x)=5-2x}}}, recall that {{{f(x)=y}}}

{{{y=5-2x}}}........swap variables

{{{x=5-2y}}}........solve for {{{y}}}

{{{2y=5-x}}}

{{{y=5/2-(1/2)x}}}


 the inverse is {{{f}}}'{{{(x)=-(1/2)x+5/2}}}