Question 1120695
What particular value for x?   x_sub_r,  {{{x[r]}}} ?


{{{y=k/x^2}}}

{{{k=y*x^2}}}


y is b when x is {{{x[r]}}};
{{{k=b*(x[r])^2}}}


{{{highlight(y=b*(x[r])^2/x^2)}}}


If x is tripled, then {{{y=b*(x[r])^2/(9x^2)}}}