Question # 1

The roots of the equation ax²+ bx + c = 0 are real and equal if

Choose an answer

b²- 4ac < 0

b²- 4ac = 0

b²- 4ac > 0

None of these

Choose an answer

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

Choose an answer

15

9

7

8

Choose an answer

Rational

Irrational

Non-real

Zero

Two quadratic equation in which xy term is missing and the coefficients of x²and y²are equal, give a linear equation by ______

Choose an answer

Addition

Subtraction

Multiplication

Division

Choose an answer

Polynomial of degree 0

Polynomial of degree 2

Quadratic equation

None of these

If one root of the equation ix²- 2(i + 1) x +(2 - i) = 0 is 2 - i, then the other root is

Choose an answer

-i

2 + i

i

2 - i

the largest degree of the terms in the polynomials is called

Choose an answer

terms of the polynomial

degree of a polynomial

co-efficient

monomial

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

The equation (cos p - 1)x²+ x (cos p) + sin p = 0 in the variable x, has real roots, then p can take any value in the interval

Choose an answer

(0, 2π)

(-π, -0)

(0,π)

None of these

Choose an answer

Polynomial of degree 0

Polynomial of degree 1

Polynomial of degree 2

Polynomial of degree n

The value of p for which both the roots of the equation 4x2- 20x + (25p2+ 15 p - 66) = 0 are less than 2, lies in

Choose an answer

For the equation |x²| + |x| -6 =0, the roots are

Choose an answer

One and only one real number

Real with sum one

Real with sum zero

Real with product zero

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

(x-1) is a factor of

Choose an answer

2x³-3x²+9

2x³-5x-8

48x^2-46x-9

x⁹-1

Choose an answer

w^-12= ______

Choose an answer

0

1

w

w²

The roots of the equation ax²+ bx + c = 0 are complex/imaginary if

Choose an answer

b²- 4ac < 0

b²- 4ac = 0

b²- 4ac > 0

None of these

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

If x²- 7x + a has remainder 1 when divided by x + 1, then a = ______

Choose an answer

-7

7

0

None of these

The graph of the quadratic equation is

Choose an answer

Straight line

Circle

Parabola

elipse

More Classes

Other Links

ECAT 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