Algebra Final Exam Review

Mrs. Marietta goes to the grocery store and buys 4 oranges, 8 cans of corn, and 1 box of crackers. The oranges cost $1.78 each, the corn costs $2.42 per can, and the box of crackers costs $6.99. Write an equation that represents the total cost c of Jake's purchases.

• c = (4 + 1.78) + (8 + 2.42) + 6.99

• c = (4 + 1.78) · (8 + 2.42) + 6.99

• c = (4 · 1.78) + (8 · 2.42) + 6.99

• c = (4 · 1.78) · (8 · 2.42) · 6.99

Mr. Johnson wants to buy a motorcycle. He must make 36 monthly payments to pay back the amount he borrowed, plus interest. His monthly payment is $272.16. What other information is necessary to determine the amount of money that Mr. Johnson borrowed from the bank?

• how much Mr. Johnson makes per month

• the interest rate on the loan

• how much a motorcycle helmet costs

• how much the value of the motorcycle will change over time

Brody swims 7 laps in the pool in 4 minutes. Which of the following would be the same number of laps per minute?

• 5 laps in 2.6 minutes

• 21 laps in 12 minutes

• 12 laps in 7.2 minutes

• 8 laps in 4.1 minutes

• -5

• -11

• -23

• 2

What is the solution of the system of equations?

y = -3x

y = x - 1

• (0, -1)

• (-3, -4)

• (-1, 3)

• integers

• real numbers

• rational numbers

• irrational numbers

Which algebraic expression can be used to find the nth term in the sequence 5, 8, 11, 14, 17, ...?

• n + 3

• 5n + 3

• 5n

• 3n + 2

Which of the following is not a linear function?

• 
• 

• -4

• 4

• 6

• 10