1. Warm-Up 1
Find the slope of the line passing through the points (1, -9) and (4, 6).
2. Sarah has been clothes shopping each Saturday for the past 6 weeks. She spent the following amounts: $112, $68, $96, $15, $99, $89
a) Find the mean b) Find the median
3. Solve:

2. Time to get Serious 7 school days till your exam
Welcome BACK!
Time to get Serious 7 school days till your exam

3. Review of CCM1 Part 1
Take about 5 minutes INDIVIDUALLY to fill out the tables on the worksheet. Write down anything you remember about the specific topic

4. Take about 10 minutes to talk about your answers with your partner

5. What do I remember from CCM1 A?

6. Describing Data: Address Shape, Outliers, Center, Spread
Mean- average
Median- middle number
Standard Deviation- How much variation exists from the average
Range-The difference between the highest and lowest number

7. Box Plot- Use the 5 number summary
Dot Plot-
Histogram-

8. 5 Number Summary- Minimum, Q1, Median, Q3, and Maximum
IQR- The difference between Q3 and Q1 (Q3-Q1)
Outliers- A number that is numerically distant from the rest of the data

9. Categorical – data that can be separated by category
EX) sorting students by the model of car they have
Quantitative – data that can be separated by numerical values
EX) sorting students by the number of siblings they have

10. Algebraic Equations- has an equal sign Order of Operations- (PEMDAS)
Algebraic Expressions- Does not have an equal sign, You evaluate (simplify or solve) Algebraic Expressions
Algebraic Equations- has an equal sign
Order of Operations- (PEMDAS)
Parenthesis
Exponents
Multiplication/Division
Addition/Subtraction
Evaluate- means to simplify or solve

11. Variable- a symbol that stands for a number
Solving Equations- Follow reverse order of operations to get the variable by its self on one side of the equation
Whole Numbers- Includes zero and all the positives (no fractions or decimals)
Integer- Includes all negatives, zero, and all positives (No fractions or decimals)
Variable- a symbol that stands for a number
Ex) x – 2 = X is the variable

12. Subtracting Negatives- Keep, change, change Multiplying Negatives-
Neg·Neg = Pos
Neg·Pos = Neg
Pos·Neg = Neg
Pos·Pos = Pos
Dividing Negatives
Neg ÷ Neg = Pos
Neg ÷ Pos = Neg
Pos ÷ Neg = Neg
Pos ÷ Pos = Pos

13. Distributive Property- Distribute to EVERYTHING inside the parenthesis
Constant- just a number, does not have a variable
Coefficient- The NUMBER in front of (multiplied by) a variable
Like Terms-Terms with the same exact variables
Substitution- Putting a number in place of a variable to simplify an expression
Equivalent expression- two expressions that have the same most simplified form

14. Less Than <
Less than or equal to ≤
Greater Than >
Greater Than or Equal To ≥
Open Circle- Use for < or >
Closed Circle- Use for ≤or ≥
Solving Inequalities- Solve like you solve equations; Follow reverse order of operations ** Flip the inequality symbol when multiplying or dividing by a NEGATIVE

15. Domain Range Independent Variable X’s Goes on x-axis
Goes in L1 when finding line of best fit
Range
Dependent Variable
Y’s
Goes on y-axis
Goes in L2 when finding line of best fit

16. Function
X values do not repeat (vertical line test) Function rule { ex. f(x) = 2x + 3} Equation

17. Function Notation
f(x) =
Example: f(x)= 2x + 4
Now-Next Rule: A recursive rule found by relating a number to what comes before it.
Written as
Ex) NEXT = NOW + 4 Start =
Ex) NEXT = NOW/2 Start =

18. Direct Variation-
Equation: y=kx
K = constant of variation (slope)
Goes through the origin on a graph
Finding slope through 2 ordered pairs:
(x1, y1)
(x2, y2)

19. Slope- Intercept Form: y = mx + b
M = slope; B = y-intercept
Point Slope: y – y1 = m( x – x1)
M = slope; X1, y1 are from the ordered pair
Standard Form: Ax + By = C
No Fractions, C is a constant

20. Parallel Lines- never intersect,
have the SAME SLOPE and DIFFERENT y-intercepts
Perpendicular Lines- Slopes are opposite reciprocal
+ change to –
– change to +
Flip the fraction

21. Calculator Steps
Creating a graph: Stat Edit Enter data into the lists 2nd y= Pick your graph (scatter plot, histogram or boxplot) Zoom 9:ZoomStat

22. Finding the Line of Best Fit
Stat Edit Enter data into L1 and L2 Move over to Calc 4:LinReg Enter

23. Finding information about data
(Mean, Median, *5-number summary- Min, Q1, Median, Q3, Max) Stat Edit Enter data into L1 Move over to Calc 1:1variableStats Enter

24. Exam
Non-Calculator Section: 6 Multiple Choice Questions 6 Short answer Questions Calculator Section: 36 Multiple Choice Questions

25. HOMEWORK!!!!
Review 1