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Log Properties Mixed Practice

Total questions: 40

Worksheet time: 3hrs 32mins

Name
Class
Date
1.

Use the properties of logs to write the expression as a single log.

log⁡(12x2)−log⁡(6x)\log\left(12x^2\right)-\log\left(6x\right)  

a)

log⁡(72x2)\log\left(72x^2\right)  

b)

log⁡(12x2−6x)\log\left(12x^2-6x\right)  

c)

log⁡(2x)\log\left(2x\right)  

d)

log⁡(18x)\log\left(18x\right)  

2.

Use the properties of logs to write the expression as a single log.

log⁡(5x)+log⁡(4)\log\left(5x\right)+\log\left(4\right)  

a)

log⁡(20x)\log\left(20x\right)  

b)

log⁡(9x)\log\left(9x\right)  

c)

log⁡(x)\log\left(x\right)  

d)

log⁡(5x+4)\log\left(5x+4\right)  

3.

Use the properties of logs to condense the expression into a single log.

log⁡(6)+log⁡(3x)−log⁡(2)\log\left(6\right)+\log\left(3x\right)-\log\left(2\right)  

a)

log⁡(9x)\log\left(9x\right)  

b)

log⁡(6x)\log\left(6x\right)  

c)

log⁡(4x)\log\left(4x\right)  

d)

log⁡(7x)\log\left(7x\right)  

4.

Write logb(x/y) as two logs

a)

logbx -logby

b)

logbx + logby

c)

logbx * logby

d)

logbx / logby

5.

Write logb(xy) as two logs

a)

logbx + logby

b)

logbx - logby

c)

logbx * logby

d)

logbx / logby

6.

Rewrite logb(xn)

a)

n logbx

b)

(logbx) n

c)

xn logbx

d)

logb(xn)

7.
Condense
a)
A
b)
B
c)
C
d)
D
8.
a)
log5(x2z2y10)
b)
log5(z2y2x10)
c)
log(zy2x10)
d)
log5(z2 + y2 + x10)
9.
a)

6 log8(xyz)

b)

log8(x) - log8(y) - 6log8(z)

c)

log8(x) + log8(y) - log8(z)

d)

log8(x) + log8(y) + 6log8(z)

10.
a)
5log6(a) + 6log6(c) − 30log6(b)
b)
log6(a) + 6log6(c) − 5log6(b)
c)
6log6(a) − 6log6(c) − 30log6(b)
d)
6log6(a) + 6log6(c) − 30log6(b)
11.
a)
log(x) + log(z) + 4log(y)
b)
3log(x) − log(z) − 4log(y)
c)
3log(x) + log(z) + 4log(y)
d)
log(x) − 4log(z) − 3log(y)
12.
a)
60 log(ab)
b)
6log(a) + log(b)
c)
log(a) - 30 log(b)
d)
6log(a) + 30 log(b)
13.

log⁡3(2)+log⁡3(5x)−log⁡3(7)=\log_3\left(2\right)+\log_3\left(5x\right)-\log_3\left(7\right)=  

a)

log⁡3(70x)\log_3\left(70x\right)  

b)

log⁡3(10x−7)\log_3\left(10x-7\right)  

c)

log⁡3(10x7)\log_3\left(\frac{10x}{7}\right)  

d)

log⁡3(5x27)\log_3\left(\frac{5x^2}{7}\right)  

14.
Write the expression as a single logarithm.   Then simplify if possible.
log53 + log56 + log59
a)
log569
b)
log556
c)
log5162
d)
log598
15.
When a logarithm has division inside of it, it expands using ________________.
a)
Addition
b)
Subtraction
c)
Multiplication
d)
Division
16.
a)
log (xy3)
b)
log (x6 − y3)
c)
log (x6/y3)
d)
log (x6 + y3)
17.
a)

F

b)

G

c)

H

d)

J

18.
a)

A

b)

B

c)

C

d)

D

19.
a)

F

b)

G

c)

H

d)

J

20.

Select all that apply.

What rule/rules would you use to condense the following expression?

log⁡3𝑝+2log⁡3q\log_3𝑝+2\log_3q

a)

Power Rule

b)

Product Rule

c)

Quotient Rule

d)

None of the above

21.

Select all that apply.

What rule/rules would you use to condense the following expression?

6log⁡5u−10log⁡5v6\log_5u-10\log_5v

a)

Power Rule

b)

Product Rule

c)

Quotient Rule

d)

None of the above

22.

Select all that apply.

What rule/rules would you use to condense the following expression?

12 log⁡5144\frac{1}{2\ }\log_5144

a)

Power Rule

b)

Product Rule

c)

Quotient Rule

d)

None of the above

23.

Select all that apply.

What rule/rules would you use to condense the following expression?

5log⁡a+2log⁡b−3log⁡c5\log a+2\log b-3\log c

a)

Power Rule

b)

Product Rule

c)

Quotient Rule

d)

None of the above

24.

Select all that apply.

What rule/rules would you use to expand the following expression?

log⁡7q18\log_7q^{\frac{1}{8}}

a)

Power Rule

b)

Product Rule

c)

Quotient Rule

d)

None of the above

25.

Select all that apply.

What rule/rules would you use to expand the following expression?

log⁡(ab3c4)\log\left(\frac{ab^3}{c^4}\right)

a)

Power Rule

b)

Product Rule

c)

Quotient Rule

d)

None of the above

26.

Select all that apply.

What rule/rules would you use to expand the following expression?

log⁡7p6q3r14\log_7p^6q^3r^{\frac{1}{4}}

a)

Power Rule

b)

Product Rule

c)

Quotient Rule

d)

None of the above

27.

log⁡(m3n)\log\left(\frac{m^3}{n}\right)  

a)

logm-log3-logn

b)

3logm+logn

c)

3logm-logn

d)

3log(m-n)

28.
Expand.
a)
A
b)
B
c)
C
d)
D
29.
a)
A
b)
B
c)
C
d)
D
30.
a)
log (xy3)
b)
log (x6 − y3)
c)
log (x6/y3)
d)
log (x6 + y3)
31.
Condense: log16 + log2 - log8
a)
log4
b)
log8
c)
log10
d)
log24
32.

ln⁡(2x2yz4)\ln\left(\frac{2x^2y}{z^4}\right)  

a)

ln2+2lnx+lny+4lnz

b)

ln2+2lnx+lny-4lnz

c)

2ln(2xy)-4lnz

d)

2ln2x+lny-4lnz

33.

Expand log⁡4(x5y2)\log_4\left(x^5y^2\right)  

a)

10log⁡4(x +y)10\log_4\left(x\ +y\right)  1

b)

5log⁡4x+2log⁡4y5\log_4x+2\log_4y  

c)

5log⁡9x+2log⁡9y5\log_9x+2\log_9y  

d)

log⁡4(5x+2y)\log_4\left(5x+2y\right)  

34.

Expand the Log completely and simplify if possible. log⁡(x12z5y)\log_{ }\left(\frac{x^{\frac{1}{2}}}{z^5y}\right)  

a)

12log⁡x −5log⁡z−log⁡y\frac{1}{2}\log x\ -5\log z-\log y

b)

log⁡ x12 −log⁡ z5+log⁡ y\log\ x^{\frac{1}{2}\ }-\log\ z^5+\log\ y  

c)

log⁡ x−log⁡z5+y\log\ \sqrt{x}-\log z^5+y^{ }   

d)

10log⁡ x−z+y10\log\ x-z+y  

35.

Use properties of Logs to write  log⁡3(4)+log⁡3(y)−log⁡3(x)\log_3\left(4\right)+\log_3\left(y\right)-\log_3\left(x\right)  

as one Log

a)

log⁡3(4xy) \log_3\left(\frac{4x}{y}\right)\

b)

log⁡3(4xy)\log_3\left(4xy\right)

c)

log⁡3(4xy)\log_3\left(\frac{4}{xy}\right)

d)

log⁡3(4yx)\log_3\left(\frac{4y}{x}\right)

36.
Logarithmic functions are the inverse of...
a)
Linear Functions
b)
Exponential Functions 
c)
Quadratic Functions 
d)
Polynomial Functions 
37.
Rewrite log3t = 5 in exponential form.
a)
5t=3
b)
log35 = log3t
c)
t5=3
d)
35=t
38.
Rewrite 34 = 81 in logarithmic form.
a)
log34 = 81
b)
log813 = 4
c)
log381 = 4
d)
log481 = 3
39.
Use multiple log properties to write as a single log:
log2x -  5log2y
a)
log2(x/y5)
b)
log2(xy5)
c)
log2(x/y)5
d)
log2(x/5y)
40.
a)
log(x) + log(z) + 4log(y)
b)
3log(x) − log(z) − 4log(y)
c)
3log(x) + log(z) + 4log(y)
d)
log(x) − 4log(z) − 3log(y)