1. Math 1 Warm Up In the Practice Workbook… Practice 6-2 (p. 72) #3, 5,21, 25, and 36

2. Writing Equations in Standard Form REMINDER: Linear Equations in Standard Form Important Facts: a. ________________________________________ b. ________________________________________ ________________________________________

3. Examples Write the given linear equations in standard form. 1.

4. Write the given linear equations in standard form. 2.

5. Write the given linear equations in standard form. 3.

6. Using Intercepts

7. Warm-Up 11/29/2012 Write the following equations in standard form: 1. 2. 3.4.

8. key terms Y-intercept: ________________________________________ __________________________________________________ X-intercept: ________________________________________ __________________________________________________

9. Find the x- and y-intercepts for each graph below. x-intercept: y-intercept: x-intercept: y-intercept:

10. Standard Form

11. Finding intercepts when given an equation. Step 1: Step 2: Step 3: Step 4:

12. 5x – 2y = 10 X-interceptY-intercept

13. 5x – 2y = 10

14. y = -x + 4 X-interceptY-intercept

15. y = -x + 4

16. y = ⅓x - 2 X-interceptY-intercept

17. y = ⅓x - 2

18. Try it: Find the x- and y-intercepts on the graph below. x-intercept:y-intercept:

19. Try it: -3x + 5y = 30 X-interceptY-intercept

20. -3x + 5y = 30

21. Try it: -3x – 7y = 21 X-interceptY-intercept

22. -3x – 7y = 21

23. Try it: 4y = 3x - 12 X-interceptY-intercept

24. 4y = 3x - 12

25. Word Problem Trish can run the 200 m dash in 25 seconds. The function f(x) = 200 – 8x gives the distance remaining to be run after x seconds. Graph this function and find the intercepts. What does each intercept represent? x05102025 f(x)= 200-8x200160120400

26. Find the intercepts and graph the line ¼x = 2 - ⅓y

27. Write the given linear equations in standard form. 4.

28. Write the given linear equations in standard form. 5.

29. Write the given linear equations in standard form. 6.

30. Write the given linear equations in standard form. 7.

31. Write the given linear equations in standard form. 8.

32. Write the given linear equations in standard form. 9.

33. Write the given linear equations in standard form. 10.