Unit 12 Review

Unit 12 Review Part 1

Representing Relationships

Multiple Choice

Find the missing value

• 160

• 41

• 180

• 140

Independent VS Dependent

Independent Variables CAUSE the Dependent Variable to CHANGE

Remember...

Cause VS Effect

Example: The amount of calories you burn DEPENDS on how many miles you run.
Independent: Miles ran
Dependent: Amount of calories burned

Multiple Choice

Identify the DEPENDENT variable in the situation:

• The batches of cookies you will make

• The amount of eggs you have

Multiple Choice

Identify the INDEPENDENT variable in the situation:

• Your grade in math class

• The effort you make in math class

Multiple Choice

Identify the dependent variable in the situation:

• How far a car can travel

• The amount of gas in the car

Multiple Choice

Identify the independent variable: The amount of money earned depends on the amount of hours worked

• Amount of money earned

• Amount of hours worked

Functions --> Equations from Tables

x is always the INPUT/INDEPENDENT variable

y is always the OUTPUT/DEPENDENT variable

How to find the equation from the table.

1. Look at your table and compare the x & y values to find a pattern.

2. Use the pattern to write a rule or equation for the table.

3. Use the rule to find the missing value in the table.

4. Using the rule, substitute the x-variable to find the missing value

Multiple Select

As x --->y and the value increases, which two operations are possble?

• Addition

• Subtraction

• Multiplication

• Division

Multiple Select

As x----->y and the value decreases, which two operations are possible?

• Addition

• Subtraction

• Multiplication

• Division

Multiple Select

Write an equation for the table. Select ALL that apply.

•  $y\ =\ x+9$  
  

•  $y=x+3$  
  

•  $y=x\times4$  

•  $y=4x$  

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Multiple Choice

Find the missing value

• 160

• y=40x

• 180

• 140

Box & Whisker Plots

• First you HAVE to list your numbers from LEAST to GREATEST

• Lower Quartile (Q1) is the median of your lower set of numbers.

• Median (Q2) is the Median of ALL numbers

• Upper Quartile (Q3) is the median of your upper set of numbers.

• Minimum (lower extreme) is the smallest number in the set, while Maximum (upper extreme) is the highest number in the set.

• Interquartile Range is the DIFFERENCE of Q3 & Q2

How To's

• Find the median of ALL numbers 1st.

• If there are TWO numbers in the middle, find the sum and divide by 2.

• We have to include these numbers in our lower & upper halves.

• If there is only ONE number in the middle, that number is the median and we do NOT count it in the lower and upper halves.

Multiple Choice

Interquartile Range is

• the difference between the third quartile and the first quartile

• the difference between the greatest and least data values.

Multiple Choice

What do points A and E represent on the box plot?

• Mean and Mode

• Mean and Median

• Minimum and Maximum Value

• First and Third Quartiles

Multiple Choice

What does point C on the box plot represent?

• First Quartile

• Median

• Third Quartile

• Mean

Multiple Choice

What does point C on the box plot represent?

• First Quartile

• Median

• Third Quartile

• Mean

Multiple Choice

6. Which city has a higher median?

• Millersburg
• Arcadia

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