Quadratic Regression with Desmos

This video tutorial guides students on performing quadratic regression using the Desmos calculator. It begins with an introduction to Desmos and how to set up a data table. The tutorial then explains how to enter the quadratic regression equation, including using subscripts and the caret symbol for exponents. Finally, it covers interpreting the results, such as identifying the vertex and intercepts, similar to what can be done with a graphing calculator.

What is the primary tool mentioned for performing quadratic regression?

• Graphing Calculator

• Desmos Calculator

• Excel Spreadsheet

• Scientific Calculator

What is the first step in Desmos for performing quadratic regression?

• Enter the regression equation

• Add a data table

• Add a graph

• Plot the points manually

Which symbol is used in Desmos to indicate a regression equation?

• Equal sign (=)

• Tilde (~)

• Asterisk (*)

• Colon (:)

How do you make the subscript for variables in Desmos?

• By pressing Shift + 6

• It happens automatically

• By using a tilde

• By typing an underscore

What is the purpose of the caret symbol in Desmos?

• To indicate multiplication

• To add a new data point

• To denote an exponent

• To start a new line

What is the standard form of a quadratic equation used in Desmos?

• y = ax^2 + bx + c

• y = ax^3 + bx^2 + c

• y = mx + b

• y = a + bx

What does the quadratic equation in Desmos help you find?

• Standard deviation

• Mean and median

• Vertex and intercepts

• Slope and y-intercept

What should you do after entering the quadratic equation in Desmos?

• Print the results

• Check the vertex and intercepts

• Share the link

• Save the graph

What is the final step mentioned for completing the homework?

• Submit the graph

• Review the intercepts

• Enter data and run regression

• Check the vertex

What is the purpose of clicking on the vertex and intercepts in Desmos?

• To hide them

• To delete them

• To change their values

• To make them more visible