NEW
Font size
S
M
L
XL
WorksheetsUnit 4 Study Guide
Total questions: 24
Worksheet time: 27mins
Name
Class
Date
1.
Simplify
a)
-5i
b)
5
c)
5i
d)
-5
2.
Simplify
a)
i sqrt(2)
b)
-1 + i sqrt(2)
c)
-1 - i sqrt(2)
d)
-1 + i
3.
Simplify
a)
-4 - i
b)
-4 + i
c)
-4
d)
i - 4
4.
Simplify
a)
i sqrt(3)
b)
i sqrt(27)
c)
3 sqrt(3)
d)
3i sqrt(3)
5.
Simplify: 3i45
a)
3
b)
3i
c)
-3i
d)
-3
6.
Simplify: -2i97
a)
-2
b)
-2i
c)
2
d)
2i
7.
Simplify: -5i40
a)
5
b)
5i
c)
-5i
d)
-5
8.
Simplify:
(3 + 4i) - (7 - 2i)
(3 + 4i) - (7 - 2i)
a)
-4 + 6i
b)
10 + 2i
c)
-4 - 6i
d)
6i
9.
Simplify:
(5 - i)(9 + 6i)
(5 - i)(9 + 6i)
a)
51i + 21
b)
41 - 5i
c)
45 - 6i2
d)
51 + 21i
10.
Simplify:
(3 + 8i)+(5 - 2i)
(3 + 8i)+(5 - 2i)
a)
-2 + 10i
b)
8 + 6i
c)
8 - 6i
d)
8i + 6
11.
Simplify:
(4 + 6i)(2 + i)
(4 + 6i)(2 + i)
a)
2 + 5i
b)
2i + 16
c)
8 + 6i2
d)
2 + 16i
12.
Solve using the quadratic formula.
x2 -6x +2 = 0
x2 -6x +2 = 0
a)
3 + sqrt(7) &
3 - sqrt (7)
3 - sqrt (7)
b)
3/2 + sqrt(7) &
3/2 - sqrt (7)
3/2 - sqrt (7)
c)
-3+ sqrt(-7)
& -3 - sqrt (-7)
& -3 - sqrt (-7)
d)
-3+ sqrt(7)
& -3 - sqrt (7)
& -3 - sqrt (7)
13.
Find the discriminant.
-2x2 +7x = 10
-2x2 +7x = 10
a)
31
b)
-31
c)
0
d)
20
14.
Solve using the quadratic formula.
x2 + 4 = 6x
x2 + 4 = 6x
a)
3 + sqrt(5) &
3 - sqrt(5)
3 - sqrt(5)
b)
-3 + sqrt (5) &
-3 - sqrt(5)
-3 - sqrt(5)
c)
3/2 + sqrt (5) &
3/2 - sqrt(5)
3/2 - sqrt(5)
d)
3 + sqrt (-5) &
3 - sqrt(-5)
3 - sqrt(-5)
15.
Describe the discriminant.
a)
Two Real Solutions
b)
One Real Solution
c)
Two Imaginary Solutions
d)
I don't know
16.
Describe the discriminant.
a)
Two Real Solutions
b)
One Real Solution
c)
Two Imaginary Solutions
d)
I don't know
17.
What is the equation of the line of best fit?
a)
y = 1.75 + 37.5x
b)
y = -.75x - 37.5
c)
y = 1.75x + 37.5
d)
y= -1.75 + 37.5
18.
Find y
if x = 101.
if x = 101.
a)
214
b)
216
c)
209
d)
215
19.
Find x
if y = 139.5.
if y = 139.5.
a)
57.5
b)
57.75
c)
58.25
d)
58.5
20.
Describe the domain.
a)
All Reals
b)
{0, 4}
c)
[0, 4]
d)
(0, 4)
21.
Describe the range.
a)
All Reals
b)
y >= -2
c)
x > 2
d)
y < -2
22.
What are the x- intercepts?
a)
x= 0 and x= -4
b)
x= 0 and x= 4
c)
y= 0
d)
x= 2
23.
Find the zeros.
a)
0 and 4
b)
0 and -4
c)
0
d)
-4
24.
Write the equation based of the zeros.
a)
x = 0
b)
x - 4 = 0
c)
x2 -4x = 0
d)
x(x +4) = 0
Reset
