Free Printable PreCal Unit 3 Retest

1.

Factor:

x^2-16x+48

a)

(x-12)(x-4)

b)

(x+12)(x+4)

c)

(x-4)(x+8)

d)

(x+4)(x-8)

2.

Factor:

3x^2+5x-12

a)

(3x+4)(x-3)

b)

(3x-4)(3x+3)

c)

(3x-4)(x*3)

d)

(3x-4)(x+3)

3.

Select a Factor of the following Polynomial:

3x^3+10x^2-x-12

a)

(x-3)

b)

(x+1)

c)

(x-1)

d)

(x+2)

4.

List the actual rational zeros:

a)

7

b)

14

c)

$\pm1,\pm2,\pm7,\pm14$

d)

-7

5.

List all the possible rational roots:

x^3-4x^2+5x-12

4 lines

6.

Find the roots of:

x^3-x^2-6x

(a)

7.

Solve:

\sqrt{3x+10}=x+4

(a)

8.

Solve

(a)

9.

Solve:

x=\sqrt{2x-4}+2

a)

x=2, x=-2

b)

x=-2, x=-4

c)

x=2, x=4

d)

x=4, x=-4

10.

Find the roots of the function.

a)

x = 1, 3

b)

x = - 1, - 3, 1, 3

c)

x = -1, -3

d)

x =

-\infty,\infty

11.

Find the roots of the function.

a)

x = - 1 ,1

b)

x = - 2, 2

c)

x =

-\infty,\infty

d)

x = 1

12.

This function

y\ =\ \sqrt{x}

has shifted right 3 units and down 2 units. What is the new function?

a)

$y\ =\ \sqrt{x+3}-2$

b)

$y\ =\ \sqrt{x-3}+2$

c)

$y\ =\ \sqrt{x-2}-3$

d)

$y\ =\ \sqrt{x\ -\ 3}-2$

13.

How many roos does the equation have?

5x^4-8x^3+4x^2-6x+3

(a)

14.

Find a polynomial function of degree 3 with zeros 3i and -2.

a)

$x^3+2x^2+9x+11$

b)

$x^3+2x^2+9x+18$

c)

$x^3-2x^2-9x+18$

d)

$x^2-3ix+2x-6i$

15.

Find the polynomial function having the zeros: 5, -3, 6

a)

$x^3-8x+3x-8$

b)

$x^3-8x^2-3$

c)

$x^3-8x^2-3x+90$

d)

$x^3+8x^2+3x+90$

16.

Which polynomial function has the zeros -2, 1, 4?

a)

$x^3+3x^2-6x-8$

b)

$x^3+3x^2+6x+8$

c)

$x^3+3x^2+6x+8$

d)

$x^3-3x^2-6x+8$

17.

What is the degree of the polynomial?

2x^3-3x^2+4x-10

(a)

18.

What is the constant?

2x^3-3x^2+4x-10

(a)

19.

What is the leading term?

2x^3-3x^2+4x-10

a)

$-3x^2$

b)

$2x^3$

c)

4x

d)

-10

PreCal Unit 3 Retest

Total questions: 19

Worksheet time: 37mins

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