CHS Algebra 1 Unit 4-5 Test Review

​Test Review

Today We Will...

Review for the Unit 4-5 Test

Take the Unit 4/5 Test in Mastery Connet

Let's review... Do you remember...

​Histogram and Percentages.

What is the total number of people represented in the histogram?

What percent of people are taller than 76.5 inches?

Fill in the Blanks

What is the total number of people represented in the histogram?

Multiple Choice

More than 6 defects per hour occurs about what percent of the time?

• 16%

• 25%

• 43%

• 50%

Writing inequality statments

Ms. Arman is buying snacks for the class. She wants to spend at most $50. Each box of snacks costs $6.50.

Write an inequality:


What is does the answer represent?

Writing inequality statments

Multiple Choice

Top Golf charges $12 for each hour. You can spend no more than $60.

Which of the following inequalities could help you solve for all the possible hours, h, that you can golf for?

• 12x < 60

• 12x ≤ 60

• 12x > 60

• 12x ≥ 60

Multiple Choice

Joan needed $100 to buy a graphing calculator for her math class. Her neighbor will pay her $5 per hour to babysit and her Father gave her $10 for mowing the lawn. Which inequality represents the minimum amount of hours she will need to babysit in order for her to buy her calculator?

• 5x + 10 ≥ 100
• 5x - 100 ≥ 10
• 10x + 5 ≤ 100
• 5x + 10 > 100

Multiple Choice

The dance committee hired a DJ for the fall dance. The DJ charges $125 per hour in addition to $55 for an assistant. The committee wants to keep the total cost under $600. Which inequality represents the maximum amount of hours the DJ will play at the dance?

• 125x + 55 ≤ 600
• 125x + 55 ≥ 600
• 125x + 55 > 600
• 125x + 55 < 600

​Tables and Equations

A table represent points (solutions) that are on the graph of a line. To find the slope....look for your pattern in the domain (x) and range (y). Remember, the y-intercept ALWAYS as a zero for x! (0, y)

The equation has a slope of:


The table has a slope of:


The equation's 'b' is:


The table's 'b' is"

​

​Compare the equation and the table

​Compare the equation and the table

Multiple Choice

What is the difference in the rate of change between the table and the equation?

• 10

• 2

• 12

• 5

Multiple Choice

Tracy is saving each month for new tires for her car. She plans to save $60 each month. Which table shows the amount Tracey has saved over the last several months?

• A

• B

• C

• D

Multiple Choice

What is the slope of the table?

• 15

• 6

• 1/6

• -6

Multiple Choice

What is the slope of the table?

• 1/4

• 4

• -6

• -4

Systems of Equations and Inequalities

Keep your units of measurement the same when writing your system from a story problem.

Where do you find the solution to a system of equations?

Where do you find the solution to a system of inequalites?

Systems of Equations and Inequalities

Keep your units of measurement the same when writing your system from a story problem.

Where do you find the solution to a system of equations? Look for the point (x, y) where the two lines interect

Where do you find the solution to a system of inequalites? Look for the double shaded area. Remember......dashed lines are NOT part of the solution!

Multiple Choice

Which of the following is a solution to the systems of inequalities?

• (0, 0)

• (-3, 0)

• (2, -5)

• (3, -1)

Multiple Choice

Which of the following is NOT a solution to the systems of inequalities?

• (0, 0)

• (3, -2)

• (3, -4)

• (4, -4)

Multiple Choice

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

Multiple Choice

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (2, 0)

Multiple Choice

Parallel Lines never intersect because...

• they have the same slopes. 
• they have the same y-intercept.
• they have different slopes.
• they have different y-intercepts. 

Multiple Choice

Lisa and Tammy are selling items at the craft show.  Which might be a reasonable solution from the graph showing the number of items sold when they both have earned the same amount?

• (1, 12)
• (3, 19)
• (5, 25)
• (0, 10)

Multiple Choice

The talent show committee sold a total of 530 tickets in advance. Student tickets cost $3 each and the adult tickets cost $4 each. If the total receipts were $1740, which system could be used to find how many of each type of ticket were sold?

• S + A = 530

  3S + 4A = 1740

• S + A = 530

  4S + 3A = 1740

• S + A = 1740

  3S + 4A = 530

• S + A = 1740

  4S + 3A = 530

Multiple Choice

Nancy went to the grocery story. On Monday she purchased 4 apples and 6 bananas for a total of $13. On Wednesday she purchased 3 apples and 7 bananas for a total of $13.50. Which system of equations represents the situation?

• 4x + 6y = 3

  13.5x - 13y = 6

• x + y = 4

  x - y = 6

• 4x + 6y = 13

  3x + 7y = 13.5

• 4x - 6y = 13

  3x - 7y = 13.5

Draw

The sum of 2 numbers must be greater than 25. The product of the two number must be less than 50. Write a system of inequalite to represent this situation.

Interpreting Story Problems

Remember: f(x) is the same as y!

Read the story problem. It will tell you what each variable represents.

X is INDEPENDENT Y is DEPENDENT
(TIME) (Distance, Amount Traveled)

Multiple Choice

Which of the following situations could be descried by the equation y= -25x + 120

• There are 120 people in the football stadium, and 25 more are entering each hour.
• A plumber charges $25 for a house call and $120 per hour.
• A teacher has 120 students. Her third period has 25 students
• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

Multiple Choice

The total cost (y) at an amusement park can be modeled by y=1.5x+20 where x is the number of rides you ride. What is the price per ride?

• 1.5

• 21.5

• 0

• 20

Fill in the Blanks

$1.00 is equal to 530.70 Armenian Drams. How many drams could you get with a $20 bill?

Fill in the Blanks

Barbara wants to buy a jacket that costs 175 Polish zloty. She has $45.

$1 = 3.97 Polish zloty

So...$45 =

Polish zloty