Lesson 2 Homework Practice Lines Of Best Fit · Authentic & Updated

: Use a ruler to draw a straight line that "splits" the data, ideally having about the same number of points above and below the line.

A student drew a line of best fit for a scatter plot with the equation: [ y = -2.5x + 45 ] lesson 2 homework practice lines of best fit

Lesson 2: Lines of Best Fit , the focus is on identifying linear trends in data and using those trends to make predictions. A line of best fit is a straight line drawn through a scatter plot that roughly balances the number of points above and below it, representing the "average" path of the data. Key Steps for Homework Practice : Use a ruler to draw a straight

where xi and yi are individual data points, x̄ and ȳ are the means of x and y, respectively. Key Steps for Homework Practice where xi and

These points do not have to be original data points from your table. They should be easy-to-read intersections on the graph grid that fall exactly on the line you drew. 3. Calculate the Slope ( Use the slope formula:

b) What does the slope mean in a real-world context? (Write a possible interpretation.)