AnswersPrecalculusDeterminants

Determinants Answers

10 verified answers1 views
3

What is the area of a triangle with vertices at (–2, –1), (4, –1), (6, 5)?

A
6 square units
B
9 square units
C
18 square units
D
36 square units
4

Which expression represents the determinant of ?

Question illustration
A
det(A) = (–4)(–7) – (–6)(–2)
B
det(A) = (–4)(–7) + (–6)(–2)
C
det(A) = (–6)(–2) – (–4)(–7)
D
det(A) = (–6)(–2) + (–4)(–7)
6

Given the system , which is true?

Question illustration
A
The system has no solutions.
B
The system has exactly one solution.
C
The system has exactly three solutions.
D
The system has an infinite number of solutions.
7

What is the area of a parallelogram formed by = and = ?

Question illustration
A
2 square units
B
6 square units
C
16 square units
D
20 square units
10

Which expression represents the determinant of ?

Question illustration
A
det(A) = (–3)(–6) – (1)(6)
B
det(A) = (–3)(–6) + (1)(6)
C
det(A) = (1)(6) – (–3)(–6)
D
det(A) = (–3)(–6) + (–1)(–6)

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