4
practice testMultiple Choice

Practice Test

Question 4 • Advanced Algebra: Concepts and Connections

The linear system represents the sales of large and small popcorn servings at a movie theater for two consecutive days. 42 liters plus 61 cap s is equal to 393 dollars 59 liters plus 78 cap s is equal to 529 dollars What is the size of the augmented matrix for this system?

Answer
A
2 times 4
B
3 times 3
C
3 times 2
D
2 times 3

Explanation

There are 2 equations, so the augmented matrix has 2 rows. Each row contains 2 variable coefficients and 1 constant, giving 3 columns; its size is 2 × 3, choice D.

AI-written and checked against the verified answer.

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