Question

If y is directly proportional to'xcube and y = 18 when x = 3,
(i) find an equation connecting x and y,
(i) find the value of y when x = 5,
(ii) calculate the values of x when y=32,​

Answer 1

Step-by-step explanation:

y=k.x

18=3.k

k=6

(I) 6x-y=0

(II) if x=5

then,

y=30

(III) if y=32

then, x=8/3

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