You are told that the y is proportional to x^2 and that when y=75, x=5. Find a formula for x in terms of y.

If we know that y is proportional to xthen we using the given values we can write 75= 5--> 75=25, however this is obviously not true but all that remains is to multiply the 52 by 3 which gives us 75=3(52) --> 75=75

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Answered by Jenieka P. Maths tutor

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