Free Printable Pre-Quiz; Fundamental Theorem of Algebra

1.

What does

i

=

a)

$-1$

b)

$\sqrt{-1}$

c)

$1$

d)

2.

What is the conjugate of

1+2i

a)

$1-2i$

b)

$-1-2i$

c)

$-1+2i$

d)

3.

What does

i^2

=?

a)

$-1$

b)

$1$

c)

$\sqrt{-1}$

d)

4.

How many zero's real or imaginary can a degree 4 function have?

a)

zero, zippo, none, nada

b)

4

c)

3

d)

2

e)

1

5.

What's the conjugate of

-i

a)

$i$

b)

$-i$

c)

$1$

d)

$-1$

6.

If 2+3i is a zero of a polynomial function what must another zero be?

a)

2-3i

b)

2+3i

c)

-2-3i

d)

-2+3i

7.

if the following are zeros of a polynomial function what is the least degree of this polynomial function? zero's are;

i+4i,\ -5-2i\ and\ i

a)

6

b)

3

c)

7

d)

101

8.

If

f\left(3\right)=-2.7

and

f\left(4\right)=0.123

what do you know happens to the graph between the x values of 3 and 4?

a)

The graph crosses the x-axis

b)

the graph crosses the y-axis

c)

this outcome means the graph does not cross the x-axis

d)

this outcome means the graph does not cross the y-axis

9.

if $h\left(w\right)=0$ then we know which of the following

a)

w is a zero of the polynomial function

b)

$w=0$

c)

the graph touches or crosses at w

d)

$\left(x-w\right)$ is a factor of the polynomial function

10.

Determine the zeros and their possible multiplicity; check all that apply

a)

$x=-3;\ multiplicity\ 1$

b)

$x=1;\ multiplicity\ 2$

c)

$x=0,\ multiplicity\ 1$

d)

$x=0;\ multiplicity\ 2$

e)

$x=1;\ multiplicity\ 1$

Pre-Quiz; Fundamental Theorem of Algebra

Total questions: 10

Worksheet time: 2mins

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