The best way to determine the graph of any situation is identifying the independent and dependent variables, and understanding the relationship between them.
In Mathematics, an independent variable is a type of variable that does not depend on any other variable for its value.
A dependent variable is the variable which signifies the effect of an independent variable and it is dependent on other factors.
Generally speaking, an independent variable is represented by the x-value (x) while the dependent variable is represented by the y-value (y). In order to determine the graph of any situation, it is important to identify the independent and dependent variables, and understand its key features and relationship between them such as;
- Linear relationship
- End behavior
- y-intercept
- Asymptotes
- Quadratic relationship
- Slope
- Range and domain
- Exponential relationship