2. What is the median of data set A ? a. 21 b. 32 c. 33 d. 34 Warm-up 11 1 2 4 3 3 2 3 1 2 2 2 0 4 1 1 3 4 5 0 1 Set A Set B 1.4 warm-up 3

3. What is the median of data set A ? a. 21 b. 32 c. 33 d. 34 Warm-up 11 1 2 4 3 3 2 3 1 2 2 2 0 4 1 1 3 4 5 0 1 Set A Set B 1.4 warm-up 3

4. 3.6 Lines in Coordinate Plane Graphing Linear Equations TEKS--1.a., b., c., d., e., 2.a., b., c., 3.a., 5.a.b., c., 7.a., b. TAKS Objectives--3, 4, 5 Pardekooper

5. 3.6 Lines in Coordinate Plane TEKS--1.a., b., c., d., e., 2.a., b., c., 3.a., 5.a.b., c., 7.a., b. TAKS Objectives--3, 4, 5 Pardekooper You will learn how to use slope-intercept form, the x- and y-intercepts, and the graphing calculator.

6. Pardekooper 1)Using slope-intercept form 2)Using x- and y-intercepts 3) Using a graphing calculator There are 3 different methods used for graphing equations.

7. Equation of a line: Slope-intercept Form Slope Y-intercept (where the line crosses the y-axis) rise run Pardekooper

8. Point Slope Form Slope Pardekooper Equation of a line: Point (x 1, y 1 )

9. Pardekooper Equation of a line: Standard Form A, B, & C are numbers

10. slope-intercept form: y = 2/3 x + 4 b is the starting point Slope Is Up 2 Right 3 Connect With A line Pardekooper

11. Lets’ try another y =- 3/5 x + 2 b is the starting point Slope Is Down 3 Right 5 Pardekooper Connect With A line

12. Point-slope form: Point is opposite (-4,2) Slope Is Up 2 Right 3 Connect With A line Pardekooper Y-2 = 2/3(x+4)

13. One more point-slope form: y + 4 = - 1/4 ( x + 2) Point is opposite (-2,-4) Slope Is down 1 Right 4 Connect With A line Pardekooper

14. Graph the following: {hint use a calculator} 1. y = 5x - 10 2. y = 2 / 3 x + 1 3. y = - 3 / 4 x + 4 4. y + 6 = - 3 / 2 (x + 5) 5. y - 3 = 2 / 3 (x - 6) 6. 15x - 29y = 429 7. 2 / 3 x - y = 4 8. 1 / 2 x - 2 / 3 y = -6