Question # 1

The minimum value of the quadratic function f(x) = 5 x 2-11,is

Choose an answer

7

-7

6

-11

If ax + bx + c =0 is satisfied by every value of x,then

Choose an answer

b = 0,c = 0

c = 0

b = 0

a = b = c = 0

Which of the following is factor of x11+a11, where n is an odd integer

Choose an answer

x-a

x+a

2x-a

2x+a

w^-1= ______

Choose an answer

0

1

w

w²

Choose an answer

-1

0

2

1

Roots of the equation x²+ 2x + 3 = 0 are

Choose an answer

Real and equal

Real and distinct

Complex

None of these

In quadratic equation f(x) = ax²,if a >0, then the graph of parabola

Choose an answer

Opens up

Opens down

close up

symmetric w.r.t.x.axis

The product of cube roots of unity is

Choose an answer

Zero

1

-1

None of these

4^1+x+ 4^1-x= 10 is called

Choose an answer

Reciprocal equation

Exponential equation

Radical equation

None of these

Choose an answer

w²⁹= ______

Choose an answer

0

1

w

w²

If w+w2 is a root of (x+1)(x+2)(x+3)(x+4) = k, then

Choose an answer

k=0

k=1

k=w

k=w2

Roots of the equation x²+ 7x + 12 = 0 are

Choose an answer

{3, -4}

{-3, 4}

{3, 4}

{-3, -4}

If a > 0, b > 0, c > 0, then the roots of the equation ax²+ bx + c = 0 are

Choose an answer

Real and negative

Non-real with negative real parts

Real and positive

Nothing can be said

The value of k (k > 0) for which the equation x²+ kx + 64 = 0 and x²- 8x + k = 0 both will have real roots is

Choose an answer

8

-16

-64

16

Choose an answer

The condition for polynomial equation ax²+ bx + c = 0 to be quadratic is

Choose an answer

The roots of the equation 4x - 3.2x+2 + 32 = 0 would include

Choose an answer

1 and 3

1 and 4

1 and 2

2 and 3

w¹⁵= ______

Choose an answer

0

1

w

w²

Choose an answer

15

9

7

8

Roots of the equation x²+ 5x - 1 = 0 are

Choose an answer

Rational

Irrational

Complex

None of these

If a polynomial P(x) is divided by x - a, then the remainder is

Choose an answer

P(o)

P(-a)

P(a)

None of these

The solution of equation x2 + 2 = 0 in the set of real number is

Choose an answer

Infinite set

Singleton set

Null set

None of these

Which of the following is a factor of x³- 3x²+ 2x - 6

Choose an answer

x + 2

x + 3

x - 3

x - 4

The condition for ax2 + bx c to be expressed as the product of linear polynomials is

Choose an answer

b4 - 4ac =0

b4- 4ac ≥0

b4- 4ac <0

b4= 4ac

Roots of the equation x²- 7x + 10 = 0 are

Choose an answer

{2, 5}

{-2, 5}

{2,5}

{-2,-5}

Choose an answer

If f(x) = ax², and a>0, then the lowest point on the parabola is called.

Choose an answer

Vertex of parabola

Co-ordinates of parabola

Roots of the equation

Coefficient of the equation

The roots of the equation x2 +6x-7=0,are

Choose an answer

1

2

1 and -7

-7

The roots of ax2+bx+c=0 are

Choose an answer

Rational ⇔ b2 -4 ac ≥ 0

Irrational ⇔ b2-4 ac > 0

Real ⇔ b2-4 ac ≠ 0

Rational⇔ b2-4 ac = 0

The maximum value of the quadratic function f(x) = -2x2+20x,is

Choose an answer

4

3

50

7

More Classes

Other Links

ECAT Pre General Science Mathematics Chapter 6 Quadratic Equations Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer