Question

We often use independent and dependant variables to represent the inputs and outputs of functions. For some functions, we can describe the relationship between variables with an equation.How can we describe the area of square, A , of side length, s, with an equation?Which is the independent and which is the dependent variable?

Answer 1

• The independent variable = The side length, s

,

• The dependent variable =Area, A

Step-by-step explanation:

The independent variable is that which is not affected by the other variable.

The dependent variable changes its value whenever the independent variable changes.

In the formula for the area of a square, A of side length, s:

`A=s^2`

Whenever the side length, s changes, the value of the area, A changes.

Thus:

• The independent variable = The side length, s

,

• The dependent variable =Area, A