3. Absolute Value

4. Make it positive

5. Properties: Commutative Associative Identity

6. Properties Commutative – change order Associative – change parentheses Identity – stays the same

7. Combine Like Terms

8. Add (or subtract) the coefficients of like terms

9. Distribution

10. Multiply by every term in the parentheses

11. Graphing Inequalities

12. Graphing Inequalities on a number line -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8

13. Graphing Linear Inequalities Dashed or solid line Shade above or below

14. Graphing Linear Inequalities

15. Words to algebra expression Product of 3 and a number Quotient of 3 and a number Sum of 3 and a number 3 less than a number Four times a sum of 3 and a number

16. Product of 3 and a number Quotient of 3 and a number Sum of 3 and a number 3 less than a number Four times a sum of 3 and a number

17. Reciprocal

18. Reciprocal – flip top to bottom, bottom to top Reciprocal of

19. Steps to solve equations

20. Distribute to remove parentheses Combine like terms on same side of = Move variable to left by adding opposite Move number to right by adding opposite Divide by coefficient of variable

21. Solving Inequalities What do I remember to do when I divide or multiply by a negative number? Example: -2x < 8

22. Solving Inequalities What do I remember to do when I divide or multiply by a negative number? SWITCH THE SIGN! Example: -2x < 8

23. Solving Inequalities What do I do when I solve and the variable ends up on the right? Example: 8 < x

24. Solving Inequalities What do I do when I solve and the variable ends up on the right? Switch the order, switch the sign. Example: 8 < x changes to: x > 8

25. Solving Inequalities How do I solve a 3-part inequality? Example: 4< 2x+1 < 8

26. Solving Inequalities How do I solve a 3-part inequality? Get x alone in the middle, between 2 numbers. Do the same operation left, center, and right. Example: 4< 2x+1 < 8 -1 -1 -1 3 < 2x < 7 3/2 < x < 7/2

27. Notes about Functions Domain is… Range is… f(x) means… It’s a function if…

28. Notes about Functions Domain is… all the x values Range is… all the y values f(x) means… plug in x to get y It’s a function if… no x’s are repeated or no points are in a vertical line.

29. Correlation on Scatter Plots How do I draw the trend line? Direction of negative correlation Direction of positive correlation

30. Correlation on Scatter Plots How do I draw the trend line? Straight through the middle Direction of negative correlation: down to the right Direction of positive correlation: up to the right pos neg