Homework Practice Lines Of Best Fit |link| | Lesson 2

If you’re staring at your scatter plots and wondering how to draw that perfect line or calculate its equation, this guide will break down the essentials to help you ace your assignment. What is a Line of Best Fit?

Draw a scatter plot and a line of best fit. (On your paper, plot the points. They trend downward from left to right.)

Do not start the line at the origin (0,0) unless the data suggests it. Just draw a ruler line that cuts through the middle of the cloud of points. lesson 2 homework practice lines of best fit

"For every [x-unit] increase, the [y-unit] increases/decreases by [slope value]."

b) Equation of line of best fit: ___________________ If you’re staring at your scatter plots and

Use the formula: [ m = \fracy_2 - y_1x_2 - x_1 ] [ m = \frac9 - 34 - 1 = \frac63 = 2 ]

b) What does the slope mean in a real-world context? (Write a possible interpretation.) (On your paper, plot the points

Your homework will likely ask you to "interpret" the slope and intercept.