Formula
I suspect you are looking for "formula".
.diffrential eqution.!
An equation.
Function
Equations .
an algebraic equation that describes a relationship between several variables is called a?
I suspect you are looking for "formula".
.diffrential eqution.!
Is called an equation. ie A = Z
It is often called a formula.
A proportional relationship between two quantities is one in which the two quantities called the unit rate, the rate of change, or the constant of proportionality.
An equation.
The two quantities are porportional.
Function
it is called an inequality
The quantities that describes about only magnitude is called SCALAR quantity
The relationship is called a surjection or a surjective function.