Final answer:
To find the equation of a quadratic function from its graph using a calculator, you can utilize the intercept method by entering the data into a calculator, using the regression function to find the equation of the least-squares regression line, and adding it to the scatter plot.
Step-by-step explanation:
To find the equation of a quadratic function from its graph using a calculator, you can utilize the intercept method. Here are the steps:
- Enter the data into a calculator and make a scatter plot.
- Use the calculator's regression function to find the equation of the least-squares regression line.
- Add the equation of the regression line to your scatter plot.
This method allows you to approximate the equation of the quadratic curve based on the data points on the graph.