+0  
 
0
22
1
avatar

g(x)=x/5+1

find g^-1(x)

explain how please

 
Guest Jun 19, 2017
social bar
Sort: 

1+0 Answers

 #1
avatar+74645 
+2

 

g(x) = x/5 + 1

 

Write as

 

y   = x/5 + 1    subtract 1 from each side

 

y - 1  = x/5     multiply both sides by 5

 

5 ( y - 1)  = x   simplify

 

5y  - 5   =  x        "swap"   x and y

 

5x - 5  = y           for y, write  g-1 (x)

 

5x - 5  =    g-1 (x)

 

 

cool cool cool

 
CPhill  Jun 19, 2017

17 Online Users

avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details