1.3 Modeling with Linear Functions Exploration 1 & 2 Daily Warm-Up 1.3 Modeling with Linear Functions Exploration 1 & 2

Modeling with Linear Functions 1.3

Example 1  

Example 1  

Vocabulary Line of Fit—used when the data in a scatter plot shows an approximately linear relationship Finding a Line of Fit Step 1: Create a scatter plot of the data Step 2: Sketch a line through the points where there are as many points above the line as there are points below it. Step 3: Choose Two points on the line and estimate the coordinates. Step 4: Write an Equation for the line of best fit

Vocabulary Line of Best Fit— the line that lies as close as possible to all of the data points Correlation Coefficient— a number from -1 to 1 that measures how well a line fits a set of data pairs (x,y) Denotated with r

Example 2

Example 3