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avatar+186 

What is the domain of the function f(x)=−4log2(x+3)−6 ?

Enter answer

 

All real numbers greater than_____

 

I tried doing it myself but I am really confused

.

jjennylove  Oct 29, 2018
 #1
avatar+91027 
+1

f(x)  = -4 log 2 ( x + 3)  -  6

 

Note, Jenny, that this isn't as hard as it looks

 

We cannot take the  log  of 0  or a negative number...so...this implies that

 

x + 3   ≥  0      subtract  3  from both sides

 

x  ≥  -3

 

So....the domain is all real numbers  greater than  -3

 

 

 

cool cool cool

CPhill  Oct 29, 2018
 #2
avatar+186 
+1

oh wow that is really simple. I was overthinking the entire problem. Thank You!

jjennylove  Oct 29, 2018

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