Test

If one zero of the quadratic polynomial x² + 3x + k is 2, then the value of k is

• 5

• -5

• 10

• -10

A quadratic polynomial, whose zeores are -4 and -5, is

• x²-9x + 20

• x² + 9x + 20

• x²-9x- 20

• x² + 9x- 20

What is the number of zeroes that a linear poly-nomial has/have:

• 1

• 2

• 3

• 4

If one zero of the quadratic polynomial x² + 3x + b is 2, then the value of b is

• 10

• 8

• -9

• -10

If 1 is one of the zeroes of the polynomial x² + x + k, then the value of k is

• 2

• -2

• 4

• -4

The graph of the polynomial ax² + bx + c is an upward parabola if

• a>0

• a<0

• a=0

• None of these

If α and β are zeroes of x² – 4x + 1, then 1/α + 1/β – αβ is

• 3

• 5

• -3

• -5

If (x + 1) is a factor of x²− 3ax +3a − 7, then the value of a is:

• 1

• -1

• 0

• 2

If α, β are zeroes of x² –6x + k, what is the value of k if 3α + 2β = 20?

• -16

• 8

• 2

• -8

Zeroes of a polynomial can be expressed graphically. Number of zeroes of polynomial is equal to number of points where the graph of polynomial is:

• Intersects x-axis

• Intersects y-axis

• Intersects y-axis or x-axis

• None of the above