Free Printable Quiz 2

1.

In a quadratic equation, what do you call the value of

b^2-4ac

?

a)

Square Root

b)

Radical

c)

Numerator

d)

Discriminant

2.

What is the value of the discriminant for the equation

b^2-4b-21=0

?

a)

-80

b)

-68

c)

88

d)

100

3.

What is the nature of the roots for the equation

a^2-2a-15=0

?

a)

real, rational and equal

b)

real, irrational and unequal

c)

real, rational and unequal

d)

not real or imaginary

4.

Which of the following equation has 0 as the value of the discriminant?

a)

$5x^2-8x-2=0$

b)

$x^2-6x+5=0$

c)

$x^2-4x+4=0$

d)

$3x^2-2x+1=0$

5.

Find m so that

x^2-6x+m=0

has one root.

a)

-9

b)

-3

c)

3

d)

9

6.

Which of the following is used to find the sum of the roots of a quadratic equation?

a)

,

b)

$\frac{c}{a}$

c)

$\frac{-b}{a}$

d)

$\frac{-c}{a}$

7.

What is the sum of the roots of

b^2-4b-21=0

?

a)

21

b)

4

c)

-4

d)

21

8.

Given the quadratic equation

6x^2-12x+6=0

, find the product of the roots.

a)

2

b)

1

c)

-1

d)

-2

9.

If the sum of the roots of a quadratic equation is 2 and the product of the roots is 10, then which of the following equations can be formed?

a)

$x^2+2x+10=0$

b)

$x^2-2x-10=0$

c)

$x^2+2x-10=0$

d)

$x^2-2x+10=0$

10.

Which quadratic equations can you form if the roots are -2 and -7?

a)

$x^2-9x+14=0$

b)

$x^2-2x-7=0$

c)

$x^2+9x+14=0$

d)

$x^2-7x-2=0$

Quiz 2

Total questions: 10

Worksheet time: 2hrs 1mins

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