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

Fill in the Blanks

When graphing independent and dependent variables, the independent is always which axis x or y?

Fill in the Blanks

When graphing independent and dependent variables, the dependent is always which axis x or y?

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.

•  $y\ =\ x+9$  
  

•  $y=x+3$  
  

•  $y=x\times4$  

•  $y=4x$  

Fill in the Blanks

Write an equation for the table.

Fill in the Blanks

Find the missing value

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

Fill in the Blanks

What is the lower quartile (Q1)?

Fill in the Blanks

What is the upper quartile (Q2)?

Fill in the Blanks

What is the lower extreme (minimum)?

Fill in the Blanks

What is the upper extreme (maximum)?

Fill in the Blanks

What is the median?