Modeling with Systems — Cumulative exam Answers

Day and Night Kennel charges $20 per day plus a one-time food fee of $15 to board a pet. Bark Time Hotel charges $30 per day plus a one-time food fee of $5. Which system represents this real-world situation?

Using the quadratic formula to solve 2x2 = 4x – 7, what are the values of x?

In one day, Joe consumes 530 calories by drinking 1 serving of juice, 2 servings of milk, and 1 soda. Darius consumes 370 calories by drinking 2 servings of juice and 1 serving of milk. Marian consumes 510 calories by drinking 3 servings of milk and 1 soda. Using matrices to solve, how many calories are in 1 serving of milk?

Which of the pairs of functions and their inverses will always have a domain and range of all real numbers?

If is the inverse of and , what is ?

Which expression is equivalent to 2x2 – 2x + 7?

What is the remainder when (x3 + 1) is divided by (x2 – x + 1)?

Which phrase best describes the translation from the graph y = 2x2 to the graph of y = 2x2 + 5?