Exploring Scatter Plots and Lines of Best Fit

What is the main objective of the video?

• To create a bar chart using Desmos

• To create a scatter plot and find the line of best fit using Desmos

• To learn basic arithmetic operations

• To understand advanced calculus

What is the first step to start working with Desmos?

• Open a text editor

• Open a browser and go to desmos.com

• Open a spreadsheet

• Download a software

How do you insert a table in Desmos?

• Right-click and select 'Add Table'

• Click on the graph area

• Use the drop-down menu and select 'Table'

• Type 'insert table' in the command line

Where do you input the X values in the Desmos table?

• In the Y column

• In the title row

• In the first column labeled X

• In the third column

What key do you press to move to the next row in the Desmos table?

• Shift

• Tab

• Space

• Enter

What symbol is used to find the line of best fit in Desmos?

• Ampersand (&)

• Tilde (~)

• Asterisk (*)

• Equal sign (=)

What does the r-squared value indicate?

• The slope of the line

• The y-intercept of the line

• The number of data points

• How well the line approximates the data

What is the equation format for the line of best fit in Desmos?

• y = mx + c

• y = bx + c

• y = ax + b

• y = mx + b

What is the value of the slope (m) in the line of best fit equation provided in the video?

• -0.863343

• 7.3691

• -7.3691

• 0.863343

What is the y-intercept (b) in the line of best fit equation provided in the video?

• 7.3691

• -0.863343

• -7.3691

• 0.863343