TODAY IN ALGEBRA 2.0…  Warm up: Writing the equation of a perpendicular line  Learning Goal 1: 2.6 (Part 1) You will fit lines to data in scatter plots  Independent Practice-Assignment #5  Learning Goal 2: COE – If I only had a car Application Practice 2

WARM UP: NEGATIVE RECIPROCAL!!!!!

2.6 SCATTER PLOTS-FITTING LINES TO DATA: Correlations STRONG POSITIVE CORRELATION STRONG NEGATIVE CORRELATION WEAK NEGATIVE CORRELATION WEAK POSITIVE CORRELATION NO CORRELATION

Points lie near line with a negative slope Points do not lie near a line Points lie near line with positive slope

2.6 SCATTER PLOTS-FITTING LINES TO DATA EXAMPLE: Tell whether the correlation coefficient for the data is closest to -1, -0.5, 0, 0.5, or 1.

2.6 SCATTER PLOTS-FITTING LINES TO DATA PRACTICE: For each scatter plot, tell whether the data have a positive, negative or no correlation AND tell whether the correlation coefficient for the data is closest to -1, -0.5, 0, 0.5, or 1.

2.6 SCATTER PLOTS-FITTING LINES TO DATA CALCULATING THE LINE OF BEST FIT: DRAW a scatter plot SKETCH a line that divides the points equally AND goes through 2 POINTS CALCULATE SLOPE AND Y- INTERCEPT then write an equation to the line

2.6 SCATTER PLOTS-FITTING LINES TO DATA x y

IN CLASS WORK #5: Pg. 117: 3-16 Due in class Previous In Class Assignments: #1: Pg. 76: 7-9, 12-13, 16-17, #2: Pg. 86: 9-21, 29-31, 41-42, 45 #3: Pg. 93: 12-17, #4: Pg. 101: 13-16, 21-25, 29-31

COE: If I only had a car