2. Write an equation and sketch a graph of an equation given different information.

3. Identify relationships between parallel and perpendicular lines and their slopes.

5. Weird but simple… My slope is Undefined Vertical Lines x = “some x value” My slope is a big fat zero. HorizontalLines y = “some y value”

6. Linear Trinity Slope Forms Point-Slope Form Slope-Intercept Form Standard (General) Form

7. BIG RULE #1: = are Lines Parallel of Slopes The

8. BIG RULE #2: Perpendicular Lines of Product The the Slopes …is = -1!

9. Let’s practice this stuff… Read examples 1 – 7 on pages 1 – 6. Homework: Page 9, Exercises #1, 9, 13, 17, 27, 31, and 35.

10. Scatter Plot Regression Analysis: the process of finding a curve (regression curve) to fit data.

11. TI-89 Tip Finding Regression Equation Press Apps 6:Data/Matrixeditor 3:New For variable enter a single lettered name and enter enter x values in c1 and y values in c2 F2:Plot setup F1:Plot type scatter, for x type c1 and for y type c2 then enter Press green diamond F2 F2 to zoom A to zoomfit Press Apps 6:Data/Matrixeditor 1:Current F5:Calc Choose Calculation type 5:LinReg for x type c1 and for y type c2 select y1(x) for store RegEq enter Press green diamond F2 F2 to zoom A to zoomfit Table 1.1 p. 7

12. So, what is the population be in 2010?

13. Let’s try it again… Classwork: Page 10, #45.

14. Homework: Page 10, #46.