C Maths

Matrix is an array of elements in rows and columns.

• True

• False

|4 -4|

|5 6|

What is the determinant of this matrix?

• 22

• 40

• 44

• 60

Identify the order of the below matrix.

|6 -4 1 5|

|-2 3 2 7|

|8 4 4 2|

• 3 × 3

• 3 × 2

• 4 × 3

• 3 × 4

What is the value of M in the below equation?

y = Mx + c

• Constant

• Gradient

• Y-intercept

• X-intercept

Identify one of these which is not a type of matrix.

• Orthogonal

• Symmetrical

• Triangular

• Square

Which type of a matrix has a determinant of zero?

• Symmetrical matrix

• Singular matrix

• Vertical matrix

• Null matrix

Identify the type of matrix that has all elements being zeros.

• Singular matrix

• Symmetrical matrix

• Assymetrical matrix

• Null matrix

What is the name given to a point where y=mx + c and y1=mx1 + c meet?

• Point of meeting

• Intersection point

• Vertical point

• Parallel point

The gradient of a straight line is 4 and one of its points is (8,-12). Find the equation of the line.

• y = 4x + 20

• y = 3x - 10

• y = 4x - 44

• y = 2x + 10

The roots of a quadratic equation are 5 and -4. What is the equation?

• y = x^2 - 5x + 20

• y = x^2 + 4x - 20

• y = x^2 - x - 20

• y = 2x^2 + 9x - 9