Question 640807
Y is inversely proportional to the cube of x. If Y = 5 when x = 2, then k = 20

true or false?

once again any help will be loved :)


{{{y = k/x^3)}}}


{{{5 = 20/2^3}}} ---- Substituting 5 of y, 20 for k, and 2 for x


{{{5 <> 2.5}}}, so {{{y = k/(x^3)}}} is {{{highlight_green(False)}}}, as {{{k <> 20}}} when y = 5, and x = 2


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