Question

There is an inverse relationship between x and y. If y is 16 when x is 4, what is x when y is 8?

Answer 1

Inverse relationship means

xy = k

Take the first set of numbers x = 4 and y = 16

What is k?

Answer 2

64?

Answer 3

Nice job! Now we have

xy = 64 for the last set of numbers, where y = 8; therefore, x equals?

Answer 4

8!!

Answer 5

Excellent! Notice that when y got smaller

16 to 8

that x got bigger

4 to 8

This is one of the reasons it is called an inverse