ALG1_Prep_May17-21

Blair recorded the number of customers who visit her business during a certain time period each week for 4 weeks. She calculates the average rates of change in the number of customers for various weeks.

Arrange the average rates of change in the number of customers from least (left) to greatest (right).

• Week 1 to Week 2

• Week 1 to Week 4

• Week 2 to Week 4

• Week 3 to Week 4

A taxi company charges $2.70 per mile and a waiting charge of $0.50 per minute for each trip. Which graph shows the equation that relates a trip involving a distance of 𝑥 miles, and a waiting time of 𝑦 minutes, if the total bill for the trip is $50.00?

• 
• 
• 
• 

Jennifer has a small business mixing and selling essential oils. One product is a mixture of two oils, lavender and peppermint. She asked her assistant, Carmen, to check on two suppliers to determine the costs for her next batch. Carmen contacted the suppliers and got quotes from each for the order. Unfortunately, she misplaced the number of ounces of each oil she needed to purchase. The information she has is:

Supplier A: lavender: $5.80/ounce; peppermint: $4.20/ounce; total cost: $128.40

Supplier B: lavender: $4.50/ounce; peppermint: $5.00/ounce; total cost: $124

Carmen needs to order ​ (a)   ounces of lavender and ​ (b)   ounces of peppermint.

• 12
• 14
• 8
• 10

Which inequality matches the graph?

• $10 more per hour
• $10 less per hour
• $5 less per hour
• $5 more per hour

A quadratic function is shown on the graph below. Which statement best describes its domain and range?

• The domain is all real numbers and the range is all real numbers.

• The domain is all real numbers and the range is all real numbers greater than or equal to 2.

• The domain is all real numbers greater than or equal to 3 and the range is all real numbers.

• The domain is all real numbers greater than or equal to 3 and the range is all real numbers greater than or equal to 2.

Match each equation with the best description of its solution(s).

• Infinite solutions.

• One solution.

• No solutions.