Creating Line of Best Fit with Desmos

This video tutorial demonstrates how to create a line of best fit using Desmos. It covers signing into Desmos, entering data points, adjusting graph settings, and creating the line of best fit using the slope-intercept form. The tutorial also explains how to analyze the line of best fit and its equation, providing a practical approach to understanding data visualization and regression analysis.

Why is it important to sign in to your Desmos account before starting to graph?

• To use the calculator

• To save your work and access previous graphs

• To change the background color

• To access the graphing tools

What is the first step in creating a line of best fit from raw data in Desmos?

• Adjusting the y-axis

• Entering data into a table

• Creating a new equation

• Changing the graph settings

How can you adjust the y-axis to display all data points?

• Zoom in on the graph

• Change the intervals along the y-axis

• Change the x-axis intervals

• Add more data points

What should you do if only some of your data points are visible on the graph?

• Change the intervals along the y-axis

• Add more data points

• Adjust the x-axis intervals

• Zoom out on the graph

What symbol is used in Desmos to indicate an approximate line of best fit?

• Tilde (~)

• Asterisk (*)

• Equal sign (=)

• Plus sign (+)

What does the slope value represent in the line of best fit?

• The average of the data points

• The x-intercept

• The steepness of the line

• The y-intercept

What is the slope value in the example provided in the video?

• 5.1

• 1.1

• 0.5

• 2.0

What is the y-intercept value in the example provided in the video?

• 2.0

• 0.5

• 5.1

• 1.1

How can you apply the method learned to a graph with scatter points?

• By adjusting the x-axis

• By using the calculator

• By adding a new table and entering the points

• By changing the graph settings

What is the purpose of creating a line of best fit?

• To adjust the y-axis

• To find the exact values of data points

• To estimate the relationship between variables

• To change the graph settings