Algebra II Review

Christy went on a round-trip bicycle ride starting at her house. When she left, she traveled downhill at a rate of 24 kilometers per hour (kph). She rested for 30 minutes, and then returned to her house. Since the return trip was partly uphill, it took half an hour longer and Christy averaged only 20 kph. How long did the return trip take?

• 2.5 hours

• 3.0 hours

• 6.0 hours

• 7.5 hours

• 2y

• - 2y

• 6

• 4

Which of the following quadratic functions has complex roots

x = -2 + 3i and x = -2 -3i

• 0

• -i

• 2+2i

• 4 and 2

• no positive numbers

• all positive numbers

• all positive numbers less than 1

• all positive numbers greater than 1

• The first mistake was made in step 1

• The first mistake was made in step 2

• The first mistake was made in step 3

• Each step is correct

Ms. Clayborne is remodeling her restaurant. She plans to buy tables in different sizes to accommodate different group sizes. What type of data should she collect before buying the tables?

• collect data on the most popular menu items for each meal

• collect data on the days of the week when the restaurant is the busiest

• collect data on the times when the greatest number of customers arrive

• collect data on the size of the different groups that come to dine at the restaurant