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Coll Alg - AMI - Day23 ~Converting between logs/exponentials

Total questions: 14

Worksheet time: 1hrs 10mins

Name
Class
Date
1.

Convert to a logarithmic equation.
 42=164^2=16  


a)

 4=log2164=\log_216  

b)

 2=log4162=\log_416  

c)

 2=log1642=\log_{16}4  

d)

 16=log4216=\log_42  

2.

 Convert to a logarithmic equation.
 y2=4y^2=4  

a)

 log42=y\log_42=y  

b)

 logy4=2\log_y4=2  

c)

 log4y=2\log_4y=2  

d)

 log24=y\log_24=y  

3.

Convert to a logarithmic equation.
(Remember  log10y=logy\log_{10}y=\log y  )

 103=100010^3=1000  

a)

 3=log1000103=\log_{1000}10  

b)

 10=log3100010=\log_31000  

c)

 1000=log31000=\log3  

d)

 3=log10003=\log1000  

4.

Convert to a logarithmic equation.  
(Remember  logey=lny\log_ey=\ln y  )
 e6 = te^6\ =\ t   

a)

 log3t=e\log_3t=e  

b)

 lnt=3\ln t=3  

c)

 log3e=t\log_3e=t  

d)

 ln(3)=t\ln\left(3\right)=t  

5.

Convert to a logarithmic equation. 

(Remember  ln  loge\ln\ \rightarrow\ \log_e  )


 et=49e^{-t}=49  

a)

 lnt=49\ln t=-49  

b)

 log49(t)=e\log_{49}\left(-t\right)=e  

c)

 ln49=t\ln49=-t  

d)

 logt49=e\log_t49=e  

6.

Convert to a logarithmic equation.
 912=39^{\frac{1}{2}}=3  

a)

 log129=3\log_{\frac{1}{2}}9=3  

b)

 log93=12\log_93=\frac{1}{2}  

c)

 log912=3\log_9\frac{1}{2}=3  

d)

 log39=12\log_39=\frac{1}{2}  

7.

Convert to a logarithmic equation.
 42=1164^{-2}=\frac{1}{16}    

a)

 2=log4(116)-2=\log_4\left(\frac{1}{16}\right)  

b)

 2=log1164-2=\log_{\frac{1}{16}}4  

c)

 116=log4(2)\frac{1}{16}=\log_4\left(-2\right)  

d)

 4=log2(116)4=\log_2\left(\frac{1}{16}\right)  

8.

Convert to an exponential equation.

 log8512=3\log_8512=3  

a)

 38=5123^8=512  

b)

 5123=8512^3=8  

c)

 8512=38^{512}=3  

d)

 83=5128^3=512  

9.

Convert to an exponential equation.

 log71=0\log_71=0  

a)

 07=10^7=1  

b)

 10=71^0=7  

c)

 70=17^0=1  

d)

 71=07^1=0  

10.

Convert to an exponential equation.

 log8(1512)=3\log_8\left(\frac{1}{512}\right)=-3  


a)

 38=15123^8=\frac{1}{512}  

b)

 83=15128^{-3}=\frac{1}{512}  

c)

 8512=38^{512}=3  

d)

 83=5128^3=512  

11.

Convert to an exponential equation. 

 ln30=3.4012\ln30=3.4012  

a)

 e3.4012=30e^{3.4012}=30  

b)

 e3.4012=ln30e^{3.4012}=\ln30  

c)

 e3.4012=1e^{3.4012}=1  

d)

 e30=3.4012e^{30}=3.4012  

12.

Convert to an exponential equation. 

 log3T10=8\log_3T^{10}=8   


a)

 38=T103^8=T^{10}  

b)

 3T10=83^{T^{10}}=8  

c)

 8T10=38^{T^{10}}=3  

d)

 83=T108^3=T^{10}  

13.

Convert to an exponential equation. 

 ln6a=2.4\ln6^a=2.4  


a)

 2.4e=6a2.4^e=6^a  

b)

 e2.4=6ae^{2.4}=6^a  

c)

 e6=2.4ae^6=2.4^a  

d)

 ea=2.46e^a=2.4^6  

14.

Convert to an exponential equation.

 log6=0.7782\log6=0.7782  

a)

 100.7782=610^{0.7782}=6  

b)

 60.7782=106^{0.7782}=10  

c)

 106=0.778210^6=0.7782  

d)

 0.778210=60.7782^{10}=6