+0  
 
0
76
1
avatar+344 

https://vle.mathswatch.co.uk/images/questions/question2242.png

 

smileysmileysmiley

qualitystreet  May 18, 2018
 #1
avatar+87604 
+1

f(x)  = 4x + p

 

g(x)  = px + 1

 

I think this is  (f ° g )(x)  = 12x + q

 

f ( g)  =   4(px + 1) + p     =  12x + q

 

4px + 4 + p   =  12x + q

 

4p  = 12      so  p  = 3

 

And

 

4 +  p  = q

4 + 3  = q  

7  = q

 

 

 

cool cool cool

CPhill  May 18, 2018

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