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You have linear functions p(x) and q(x). You know p(2)=3, and p(q(x))=4x+17 for all x. Find q(-1).

 Jul 21, 2022
 #2
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I let      p(x)=ax+b            and      q(x)=tx+r

 

I did all the substitution and got eall the terms in terms of b

 

I could then find q(-1) in terms of b  but not as a number on its own.

 

 

 

I do not think that my answer is wrong. 

 

\(a=\frac{3-b}{2}\\ t=\frac{8}{3-b}\\ r=\frac{34-2b}{b-3}\\ \)

 

etc

 Jul 22, 2022

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