Question 1183026


a) {{{W}}} varies directly with {{{x}}}.

{{{W=k*x}}} ....  where {{{k}}} is a constant

b) {{{a}}}varies inversely with the square of {{{b}}}.

{{{a=k/sqrt(b)}}} ....  where {{{k}}} is a constant

c) 
{{{Z}}} varies jointly with {{{x}}} and{{{ y}}}.
{{{Z=k*x*y}}} ....  where {{{k}}} is a constant

d) 
{{{P}}} varies directly with the square root of {{{f }}}and inversely with {{{g}}}.

{{{P=k(sqrt(f)/g)}}} ....  where {{{k}}} is a constant