Answer:
1) Increases
2) Decreases
Step-by-step explanation:
For direct proportion, the general equation is y= kx, where k is a constant.
Take for example the equation y= 4x.
When x= 1, y= 4(1)= 4
Since y is dependent on th value of x, let's substitute x with a larger number and see what happens to y.
When x= 3, y= 4(3)= 12
Notice that when x changes from 1 to 3, y increases from 4 to 12.
∴ In a relationship that varies directly, as one amount increases, the other amount increases.
Inverse proportion has a general equation of [tex]y = \frac{k}{x}[/tex].
Let's use [tex]y = \frac{4}{x} [/tex] as an example.
When x= 1, y= 4÷1= 4
When x= 4, y= 4÷4= 1
This time, when x increases from 1 to 4, y decreases from 4 to 1.
∴ In a relationship that varies indirectly, as one amount increases, the other amount decreases.
