4.Determinants and Matrices Quiz
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Standards-aligned
Aasha academia
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the area of a triangle with vertices (x1, y1), (x2, y2) and (x3, y3)?
1/2(x3(y2–y1) + x1(y3–y2) + x2(y1–y3))
1/2(x2(y1–y3) + x3(y2–y1) + x1(y3–y2))
1/2(x1(y3–y2) + x2(y1–y3) + x3(y2–y1))
1/2(x1(y2–y3) + x2(y3–y1) + x3(y1–y2))
Tags
CCSS.HSG.GPE.B.7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the minor of an element aij of a determinant?
The sum of the elements in the ith row and jth column
The determinant obtained by deleting the ith row and jth column
The product of the elements in the ith row and jth column
The square of the element aij
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the cofactor of an element aij defined?
Aij = (-1)ijMij, where Mij is the square of the element aij
Aij = (-1)ijMij, where Mij is the product of the elements in the ith row and jth column
Aij = (-1)ijMij, where Mij is the determinant obtained by deleting the ith row and jth column
Aij = (-1)ijMij, where Mij is the sum of the elements in the ith row and jth column
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When is a system of equations said to be consistent?
When its solution exists
When its solution does not exist
When it has infinite solutions
When it has no variables
Tags
CCSS.8.EE.C.8B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an inconsistent system of equations?
A system with no variables
A system with no solution
A system with infinite solutions
A system with a unique solution
Tags
CCSS.8.EE.C.8B
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the determinant of the matrix | 2 3 | | 5 7 | ?
-1
1
4
-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the area of a triangle with vertices (1, 2), (4, 5) and (7, 8)?
12
6
15
9
Tags
CCSS.HSG.GPE.B.7
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