1. Unit 4: Linear Function Review

2. Play for Extra Credit!! This Review Game is posted on Mrs. Laurenzi’s website. If you play at home and bring in all of your work for ALL questions you can earn 2 bonus points on the test tomorrow! No late submissions accepted.

3. 1. What is Slope-Intercept Form of a Line?

4. Slope y-intercept

5. 2. Graph Using Intercepts

7. 3. What is the Slope Formula?

9. 4. Write the Equation of the Line in Slope-Intercept Form

11. 5. Find the Slope

13. 6. Find the Slope

14. Undefined!!!

17. 8. Write an Equation

18. y-intercept can be anything except +7 Slope MUST be 4 Parallel lines have the SAME Slopes

19. 9. Write an Equation

20. y-intercept can be anything Perpendicular lines have Negative Reciprocal Slopes

21. 10. Bake Sale You sell cupcakes for $1.50 and brownies for $1.00 each. You sold a total of $50.50. a)Write an equation in standard form. Define your variables.

22. 10. Bake Sale You sell cupcakes for $1.50 and brownies for $1.00 each. You sold a total of $50.50. a)Write an equation in standard form. Define your variables. x= # cupcakes sold y= # brownies sold

23. 10. Bake Sale You sell cupcakes for $1.50 and brownies for $1.00 each. You sold a total of $50.50. b) If you sold 16 brownies, how many cupcakes did you sell? x= # cupcakes sold y= # brownies sold

24. 10. Bake Sale You sell cupcakes for $1.50 and brownies for $1.00 each. You sold a total of $50.50. b) If you sold 16 brownies, how many cupcakes did you sell? x= # cupcakes sold y= # brownies sold

25. 10. Bake Sale You sell cupcakes for $1.50 and brownies for $1.00 each. You sold a total of $50.50. c) Does it make sense for you to have sold 30 cupcakes? Explain. If yes, how many brownies did you sell? x= # cupcakes sold y= # brownies sold

26. 10. Bake Sale You sell cupcakes for $1.50 and brownies for $1.00 each. You sold a total of $50.50. c) Does it make sense for you to have sold 30 cupcakes? Explain. If yes, how many brownies did you sell? x= # cupcakes sold y= # brownies sold

27. 11. Art Show An artist is renting a booth at an Art Show for $350 and plans to sell framed pictures for $50 each. a) Write an equation in slope-intercept form to represent this situation. Define your variables.

28. 11. Art Show An artist is renting a booth at an Art Show for $350 and plans to sell framed pictures for $50 each. a) Write an equation in slope-intercept form to represent this situation. Define your variables. x= # pictures sold y= total $ profit

29. 11. Art Show An artist is renting a booth at an Art Show for $350 and plans to sell framed pictures for $50 each. b) What is the slope and what does it represent in the context of the problem? x= # pictures sold y= total $ profit

30. 11. Art Show An artist is renting a booth at an Art Show for $350 and plans to sell framed pictures for $50 each. b) What is the slope and what does it represent in the context of the problem? x= # pictures sold y= total $ profit Slope is $50 per picture the artist sells

31. 11. Art Show An artist is renting a booth at an Art Show for $350 and plans to sell framed pictures for $50 each. b) What is the y-intercept and what does it represent in the context of the problem? x= # pictures sold y= total $ profit

32. 11. Art Show An artist is renting a booth at an Art Show for $350 and plans to sell framed pictures for $50 each. b) What is the y-intercept and what does it represent in the context of the problem? x= # pictures sold y= total $ profit The y-intercept is -350 for the cost of renting the booth. It is negative because the artist has to PAY $350

33. 12. Graph Using Slope-Intercept Form

35. 13. Graph…

36. Could be x= any number except 7

37. 13. Graph…

38. Could be y= any number

39. STUDY FOR YOUR TEST!!!!!