Final answer:
Goal Seek uses a trial and error approach to adjust the value of an independent variable in order to achieve a target value for a dependent variable.
Step-by-step explanation:
Goal Seek in Microsoft Excel uses a trial and error approach to find the right input value that achieves the desired outcome in the dependent cell. This tool essentially works by adjusting the value of one variable (the independent variable) to see what value causes the dependent variable to match the goal. Unlike methods such as linear programming or regression analysis, which are more systematic and equation-based, Goal Seek operates by iteratively trying different values until the target value is achieved within a specified level of accuracy.