+0  
 
0
610
5
avatar

I'm doing an algebra equation and I'm having trouble with what seems like a simple step. Can someone please explain how you get 3(3/4)^(-4)+4 . The answer came out as 3 but I'm not sure the steps to it. Can someone please help, thank you. 

 Nov 13, 2014

Best Answer 

 #5
avatar+33661 
+5

Yes, it means any point.  However, it usually pays to use values that make the function easy to evaluate (like -4), as long as they enable you to differentiate between the graphs you have to choose between.

 

.

 Nov 13, 2014
 #1
avatar+33661 
+5

You must have written the expression incorrectly as it certainly doesn't come out as 3.

$${\mathtt{3}}{\mathtt{\,\times\,}}{\left({\frac{{\mathtt{3}}}{{\mathtt{4}}}}\right)}^{\left(-{\mathtt{4}}\right)}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}} = {\frac{{\mathtt{364}}}{{\mathtt{27}}}} = {\mathtt{13.481\: \!481\: \!481\: \!481\: \!481\: \!5}}$$

.

 Nov 13, 2014
 #2
avatar
0

Thanks for getting back to me. Here is the equation I'm working on. It says 3 on there. 

 Nov 13, 2014
 #3
avatar+33661 
+5

p(x)

p(-4) = 3*(3/4)(-4+4) = 3*(3/4)0 = 3*1 = 3  (because any number, including 3/4, to the power 0 is 1).

 

.

 Nov 13, 2014
 #4
avatar
0

Oh I get it, I see what I missed. Thanks! I have one more question. When choosing points for the graph, it means any point? 

 Nov 13, 2014
 #5
avatar+33661 
+5
Best Answer

Yes, it means any point.  However, it usually pays to use values that make the function easy to evaluate (like -4), as long as they enable you to differentiate between the graphs you have to choose between.

 

.

Alan Nov 13, 2014

3 Online Users