Question

Please help and fill in the blanks.

Answer 1

a) x and y are not inversely proportional.

b) x and y are inversely proportional.

The value of k is: k=30

Explanation:

We need to find if x and y are inversely proportional

If x and y are inversely proportional we will have:
`k=yx`

a)

x y k=yx

3 8 24

4 6 24

5 4.8 24

5.5 4 22

As for all values of y and x, k is not constant so, x and y are not inversely proportional.

b)

x y k=yx

0.1 300 30

0.5 60 30

75 0.4 30

100 0.3 30

As for all values of y and x, k is constant so, x and y are inversely proportional.

The value of k is: k=30