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avatar+1656 

im unsure with the above question ? i may be completely wrong but true false true?

 

question 2) theres 4 options to choose from i think its C?

 

 Dec 9, 2019
 #1
avatar+109064 
+2

First one

 

We are using these properties here  (these work the same with Ln)  :

 

Log (ab)  = Log (a) + Log (b) 

Log (a/b)  = log a  - Log b 

And

b log a  = log ab

 

So......

 

log3 (cd4)  =  log3 (c)  + log3 d4   =  log 3 (c)  + 4log 3 (d)    FALSE

 

(3/4)  ( Ln a + Ln b)   = (3/4)Ln ( ab)  = Ln (ab)3/4  = Ln (a3b3)(1/4)  = Ln 4√(a3b3)   TRUE

 

3 Ln e   - 2 Ln f    =  Ln e3  -  Ln f2   =  Ln ( e3 / f2)    TRUE

 

 

 

cool cool cool

 Dec 9, 2019
 #2
avatar+1656 
+1

ohhh okay, i see where  I made my mistake, thank you for your resonse! I appreciate it. smiley

jjennylove  Dec 9, 2019
 #4
avatar+109064 
+1

No prob   !!!

 

 

cool cool cool

CPhill  Dec 9, 2019
 #3
avatar+109064 
+2

Second one.....

 

Remember that the inverse reverses  the coordinates

 

So....on the inverse graph we should have the points

 

(-6.4, 3)    (-2.6, 2)    (-1.2, 1)    (-1, 0)   ( -0.8, -1)   ( 0.6, -2)    (4.4, - 3)

 

Note that the graph should apear  to "fall"  from left to right  and the point (-1,0)  is on the graph

 

So    "A"  appears to be correct

 

 

cool cool cool

 Dec 9, 2019

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