Question

if y is inversely proportional to square of x. given that y =24 when x =2 find
a) the formula for y in terms of x
b)the value of y when x =8
please help me i am stuck on this one

Answer 1

Answer:

Step-by-step explanation:

when y∝1/x²

meaning y=k/x²

therefore when y=24 and x=2,

2²=2x2=4

k=y×x²

k=4x24

=96

therfore the formula connecting x and y is

y=96/x²

the value of y when x=8

8²=8x8=64

therefore y= 96/64

and y=1.5

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