1. Unit 4: Linear Equations In-Depth 4.1 Using m & b to graph equations

2. Write down the slope-intercept formula. Write down the point-slope formula. Write down this problem on your COMMUNICATOR Be prepared to share your work with the class. Page 44 of your INB construct the equation and interpret m & b A magazine publisher charges a supermarket $2 for each magazine they order plus $30 a month to rent the magazine rack. y – y 1 = m(x – x 1 ) y=mx + b

3. Which formula would you use? Write down this problem on your COMMUNICATOR y – y 1 = m(x – x 1 ) y=mx + b

4. Which formula would you use? Write down this problem on your COMMUNICATOR y – y 1 = m(x – x 1 ) y=mx + b

5. Which formula would you use? Write down this problem on your COMMUNICATOR y – y 1 = m(x – x 1 ) y=mx + b

6. Fill in the blanks. Write down this problem on your COMMUNICATOR y=4x + 9 y=mx + b

7. Fill in the blanks. Write down this problem on your COMMUNICATOR y + 5 = ½ (x – 3) y – y 1 = m(x – x 1 )

8. Fill in the blanks. Write down this problem on your COMMUNICATOR y - 9 = 2 (x – 4) y – y 1 = m(x – x 1 ) y - 7 = 2 (x – 3)

9. ITEMS of BUSINESS Intervention starts today. Make sure to make-up quizzes and assignments if you were absent. See me before/after school or at the beginning/end of class to make-up a quiz. If you’re not happy with a quiz score, you can RETAKE it for a better score. See me before/after school.

10. Have your homework out on your desk.

11. People with 100%, try this honors question: Write the equation of the line that passes through the points (13, -5) & (-4, -5). Also, identify the slope and y=intercept.

12. Get into your 4-Square Groups Page 44-45 of your INB construct the equation and interpret m & b A magazine publisher charges a supermarket $2 for each magazine they order plus $30 a month to rent the magazine rack.

14. Identify & interpret m = b =

15. Identify & interpret m = b =

16. US ShirtsHot Shirts When is Hot Shirts cheaper? ______________When is US Shirts cheaper? ______________ When are they the same? _______________ Who’s the better deal? _________________ C = 8S + 15 C = 5.50S + 50 55 127 95 175 77.50 127 105 160

17. Pretend each group is a different t-shirt company. Come up with a cost equation for your group/company. Identify m. Identify b.

18. Group #1 C = ____________ m = b = Group #2 C = ____________ m = b = Group #3 C = ____________ m = b = Group #4 C = ____________ m = b = Group #5 C = ____________ m = b = Group #6 C = ____________ m = b = Group #7 C = ____________ m = b = Group #8 C = ____________ m = b = Group #9 C = ____________ m = b =

21. construct the equation and interpret m & b A magazine publisher charges a supermarket $2 for each magazine they order plus $30 a month to rent the magazine rack.

23. SHOW YOUR WORK Worksheet 4.4 Construct the equation. Interpret m &b.