Matrices & Determinants - Quiz

If a matrix has 6 elements, then number of possible orders of the matrix can be

• 2

• 4

• 3

• 6

• 1

• 2

• 3

• 4

Tags

CCSS.HSN.VM.C.8

If A is a 3 x 3 matrix such that det (A) = 8, then det (3A) equals ________.

• 8

• 24

• 72

• 216

• 3

• 2/3

• 3/2

• -1/4

• 6, 6

• 6, -6

• -6, -6

• -6, 6

The area of a triangle with vertices (-3, 0), (3, 0) and (0, k) is 9 sq. units. The value of k will be

• 9

• 3

• -9

• 6

Tags

CCSS.HSG.GPE.B.7

Using determinants, find the equation of the line joining the points (1, 2) and (3, 6).

• y = 2x

• x = 3y

• y = x

• 4x - y = 5

Tags

CCSS.HSA.REI.C.9