Question # 1

Choose an answer

4

6

8

10

The roots of the equation will be irrational if b²- 4ac is

Choose an answer

Positive and perfect square

Positive but not a perfect square

Negative

Zero

If 3x4 +4x3+x5is divided by x+1 , which of the following is the remainder

Choose an answer

7

-2

6

1

Choose an answer

The standard form of the quadratic function f(x) = -x² +4x+2, is

Choose an answer

(x-2)²+6

-(x-2)² + 6

(x-3)²+5

(x+4)²-7

Which of the following is factor of p(x) =2x3 +3x2+3x+2 ?

Choose an answer

x+1

2x+1

3x+1

2x-1

If the roots of 3x2+kx + 12 = 0 are equal then k = ______

Choose an answer

Another name of quadratic equation is

Choose an answer

Polynomial

2nd degree polynomial

Linear equation

simaltaneous equations

Choose an answer

0

-1-w²

If the roots of ax²+ bx + c =0 are equal in magnitude but opposite in sign, then

Choose an answer

a = 0

b = 0

c = 0

None of these

A quadratic equation has two

Choose an answer

roots

degree

variables

constants

If a,β are the roots of the equation x2 + kx +12 = 0 such that a - β = 1, the value of k is

Choose an answer

0

±1

±5

±7

The roots of ax2 + bx + c = 0 are always unequal if

Choose an answer

b2 - 4ac = 0

b2- 4ac ≠ 0

b2- 4ac > 0

b2- 4ac ≥ 0

The sum of the roots of the equation x2 -6x +2 = 0 is

Choose an answer

-6

2

-2

6

If b²- 4ac = 0 then the roots of the equation are

Choose an answer

Real and distinct

Real and equal

Imaginary

None of these

A polynomial of arbitrary degree

Choose an answer

f(x) = o

f(x) = x

f(x) = a

f(x) = ax + b,a ≠ 0

In quadratic equation, if the replacement of y with -y leaves the equation unchanged, then the graph is

Choose an answer

Straight line

Circle

Hyperbola

Symmetric w.r.t.0

If b²- 4ac is positive then the roots of the equation are

Choose an answer

Real

Imaginary

Positive

Negative

Choose an answer

If x² + px + 1 is a factor of ax³+ bx +c, then

Choose an answer

a²+ c²= -ab

a²- c²= -ab

a²- c²= ab

None of these

The discriminant of the quadratic equation ax²+ bx + c = 0 is

Choose an answer

b²+ 4ac

b²- 4ac

4ac - b²

a²- 4ac

The polynomial x - a is a factor of the polynomial f(x) if and only if

Choose an answer

f(a) is positive

f(a) is negative

f(a) = 0

None of these

Choose an answer

b = c

a = c

b = 0

The positive value of k for which the equation x2 + kx + 64 = 0 has one of the roots 0

Choose an answer

4

64

8

All values of k

If S and P are the sum and the product of roots of a quadratic equation, then the quadratic equation is

Choose an answer

x²+ Sx - P = 0

x²- Sx + P = 0

x²- Sx - P = 0

X²+ Sx + P = 0

If the roots of x²+ ax + b = 0 are non-real, then for all real x, x²+ ax + b is

Choose an answer

Negative

Positive

Zero

Nothing can be said

If x - 2 is a factor of ax2- 12x + a = 2a, then a = ______

Choose an answer

-5

5

0

1

A quadratic equation in x is an equation that can be witten in the form

Choose an answer

ax²+ b = 0

ax³ +b²+c=0

ax² +bx+c=0

ax³ +bx³+cx=0

The two parts into which 57 should be divided so that their product is 782 are

Choose an answer

43,14

34,23

33,24

44,13

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

Choose an answer

The solution set of x²- 5x + 6 = 0 is

Choose an answer

{1, 3}

{2, 3}

{1, 2}

None of these

More Classes

Other Links

Mathematics ECAT Pre Engineering 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