Mathematics · Oct / Nov 2021 · Paper 21 · Question 14
0580
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y is inversely proportional to the square root of ( ) x 2 - . When . , x y 4 25 12 = = . Find x when y 3 = . x = [3]
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38 [3]
M2 for 12 × 4.25 − 2 = 3 × x − 2 OR k
M1 for y = oe x − 2 their k
M1 for 3 = oe x − 2
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