Determinant Area of Triangle Collinear

Using determinants, find the area of the triangle whose vertices are (0, 0), (4, 3) and (8, 0).

• 12

• 21

• 24

• NONE OF THE ABOVE

Calculate the determinant

• 0

• -15

• -70

• 10

Evaluate the det (B).

• 7

• -7

• 23

• -23

• 33

• 48

• 16.5

• 12.5

Which of the following has a determinant of 0?
*det= ad-bc

• ⌈1  0⌉
  ⌊2  3⌋

• ⌈-4  -2⌉
  ⌊6   3⌋

Evaluate the determinant of the matrix.

• -21

• 0

• 9

• 12

• 1

• 2

• 3

• none of these

If the determinant of the matrix is 14, what is the value of x?

Find the determinant of the given matrix?

• 5

• -5

• 0

• -75

What is the formula for the determinant of a 2x2 matrix?

• ad-bc

• ab-cd

• ad+bc

• (a+d)(b+c)