1. Go over your quizzes record grades, put away in binder……. August 26, 2011

2. Linear Function Review August 26, 2011

3. Find the slope 1) (-2,1) (3,5) 2) (4,2) (-6,2) 3) (-3,5) (-3,-1)

4. Slope-Intercept Form y = mx + b Linear Equations

5. Always graph the y-intercept first! Slopes must be fractions when graphing. The numerator (top) of the fraction is the rise. The denominator (bottom) of the fraction is the run.

6. 4) Graph y =

7. 5) Graph y = 2x + 7

8. Horizontal Lines: HOY x y Horizontal Lines have 0 slope; therefore their equations are y = 0x + b or y = b 6) example: Write an equation of the line that passes through (-5, 5) and (7, 5). y = 5 (-5, 5)(7, 5)

9. Vertical Lines: VUX x y Vertical Line have undefined slope. Their equation does not start with y. Their equation is x = # 7) example: Write an equation of the line that passes through (3, 6) and (3, -3). x = 3 (3, -3) (3, 6)

10. Standard Form: Ax + By = C you can NOT tell the y-int or the slope FROM this form. Linear Equations

11. Standard Form: 3x - 2y = 18 you CAN TELL the x and y intercepts from this form. Use the cover up method… 8) Find the x and y intercepts Linear Equations

12. Graph the following ACCURATELY on graph paper! 9) y = 3x – 4 10) y = -2x + 4 11) 3x – 2y = 8 12) 5y + 2x = -10 13) 3x – 4y = 4 14) -x – 2y = 10 15) y = -3 16) x = 6

13. Today’s Vocabulary: slope, slope-intercept form, standard form, horizontal lines, vertical lines, x and y intercepts

14. Homework WS 2