Answer:
Direct variation
Step-by-step explanation:
we know that
A proportional relationship is also known as a direct variation
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form [tex]y/x=k[/tex] or [tex]y=kx[/tex]
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
In a proportional relationship
If the variable x increases -------> the variable y increases
If the variable x decreases -------> the variable y decreases
