Formula connecting x and y is y= k/x^3 , where k is a constant. Given that y = -1 when x = 2. Calculate the value of
(i) k,
(ii) x when y = 64.

I need step to step explanation, although my answer is k=-8 and x=-2, I want to confirm if it's correct or not and what were the steps.​

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step-by-step explanation:

it is definatly the 3rd one. very much looks like it, for a good chance, the third one would be best for you.

8(4)^8=72^feet to say that the total can conclude to 8(4) which as you know would mean 8 x 4. that equals 32w. 32^ could make a 72 answer as well. but your coefficent will remain w so your answer is 72w.

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