When the relationship between the independent and dependent variable is modeled by an quadratic functionwhat can you use to find the function?

To find a quadratic function that models the relationship between the independent and dependent variables, you can use methods such as polynomial regression if you have data points, or you can utilize the standard form (y = ax^2 + bx + c) to determine the coefficients (a), (b), and (c). This can be achieved by fitting the data to the quadratic form using techniques like least squares or by using vertex and intercept forms if specific points or features of the graph are known. Additionally, you can also use systems of equations if you have specific points through which the parabola passes.