1. Warm-Up (Answer Keys to Homework on back table)

2. Warm-Up Continued Is the relationship linear? Alt (1,000 ft)Temp (F) 8197.6 4.5203.9 3206.6 2.5207.5 **You have to find the rates of change + 6.3 + 2.7 +0.9 -3.5 -1.5 -0.5 Yes, the function is linear.

4. Homework Questions? ?!?!?!

5. Obj: to use standard form, point-slope form, and slope-intercept form 6.1-6.4 Mixture Problems Grab a Whiteboard, Marker, & Eraser!!

6. Keep in Mind… Standard, Slope-Intercept, Point-Slope

7. Write equation in slope-intercept form Slope = –1; (0, 9)

8. Write equation in slope-intercept form

9. Write the equation that describes each line in the slope-intercept form slope = 3, y-intercept = –2 y = 3x – 2

10. What is the easiest way to graph an equation in Standard Form? Using the x-intercept and the y-intercept

11. Take the equation from standard form to slope-intercept form 6x + 2y = 10 y = –3x + 5

12. Write an equation that describes each line the slope-intercept form. Slope = –2, (2, 1) is on the line y = –2x + 5

13. Write the equation that describes each line in the slope-intercept form. y =

14. Write an equation that describes each line the slope-intercept form. (0, 4) and (–7, 2) are on the line

15. Slope-Intercept The cost to take a taxi from the airport is a linear function of the distance driven. The cost for 5, 10, and 20 miles are shown in the table. Write an equation in slope-intercept form that represents the function. y = 1.6x + 6

16. Write the equation that describes each line in the slope-intercept form.

17. Take the equation from standard form to slope-intercept form x – y = 6 y = x – 6

18. Classwork/Homework You choose… 6.3/6.4 Problem Solving Worksheet Front/Back Textbook: pages 331-332 #s 6-28 even Enrichment Activity Worksheet Need extra practice/have been absent? Try the Reteaching Worksheet (5 problems) *This will not be counted as homework*

19. Put everything away… Classify each equation by form Standard (S) Point-Slope (PS) Slope-Intercept (SI) Not in any proper form (N/A) Not linear (X) Share your answer with your partner Go over answers as a class.