Question

1. y is inversely proportional to x. Given that x = 5 when y = 3.

a) show y=15/x
b) find y when x=45.​

Answer 1

a)

Explanation:

Y=k/x........(1)

Put y and x in (1) to get:

3=k/5

K=15

Now put k=15 in (1):

Y=15/x

b)

Y=k/x as x=45

Y=15/45

Y=1/3