Line of Best Fit Equations
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Objective
I can determine the equation of a line of best fit for a given set of data.
Part 1 of 4
Warm-up video
Mario's Math Tutoring · 6:03
We don't generate video — this one is by Mario's Math Tutoring on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
When estimating the line of best fit, you want to draw a line that comes as close to the points as possible, with some points above and some below the line.
- 2
To find the slope of the estimated line of best fit, you select two points on the line and use the slope formula. The formula is: m = - -
- 3
After finding the slope, you can use either the point-slope form or the slope-intercept form to write the equation of the line of best fit. Write down each formula below:
Part 3 of 4
Practice
8 questions
When visually estimating a line of best fit for a scatter plot, what is the main goal regarding the data points?
Which two forms of a linear equation are discussed in the video for writing the equation of a line of best fit?
Part 4 of 4
Exit ticket
Quick comprehension check
“An estimated line of best fit passes through the points (2, 5) and (6, 1). Determine the equation of this line in slope-intercept form (y = mx + b). Show all steps for finding the slope and the y-intercept.”
Sample answer included in the free materials
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