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| Question 367753:  Composition of Functions problem:
 r(t)=q(p(t))
 Given:
 t  |   p(t) |    q(t)  |   r(t)
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 0  |    4   |     ??   |    ??
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 1  |    ??  |     2    |    1
 -----------------------------
 2  |    ??  |     ??   |    0
 -----------------------------
 3  |    2   |     0    |    4
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 4  |    1   |     5    |    ??
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 5  |    0   |     1    |    3
 -----------------------------
 Fill in ?? with correct answer.  I need help with a process to solve this problem.
 I can solve r(0)=?? by this method:  r(0)=q(p(0)) knowing that r(0) will be equal to q(p(0)), then r(0)=q(4) because I find that p(0) is equal to 4 which becomes q(4), next I see that q(4) is equal to 5, therefore r(0)=5.
 I am having difficulty with a process to find for p(t) and q(t).
 Any ideas?
 Thanks,
 Deb
 Answer by stanbon(75887)
      (Show Source): 
You can put this solution on YOUR website! Composition of Functions problem: r(t)=q(p(t))
 Given:
 t | p(t) | q(t) | r(t)
 -----------------------------
 0 | 4 | ?? | ??...........r(0)= q(p(0))=q(4)= 5
 ..........................q(0) =q[p(5)] = r(5) = 3
 -----------------------------
 1 | ?? | 2 | 1..........................p(1) = q^-1(r(1))= q^-1(1) = 5
 -----------------------------
 2 | ?? | ?? | 0...........p(2) = q^-1(r(2)) = q^-1(0)= 3
 ..........................q(2) = p^-1(r(2)) = p^-1(0) = 5
 -----------------------------
 3 | 2 | 0 | 4
 -----------------------------
 4 | 1 | 5 | ??................r(4) = q(p(4)) = q(1)=2
 -----------------------------
 5 | 0 | 1 | 3
 -----------------------------
 Fill in ?? with correct answer. I need help with a process to solve this problem.
 I can solve r(0)=?? by this method: r(0)=q(p(0)) knowing that r(0) will be equal to q(p(0)), then r(0)=q(4) because I find that p(0) is equal to 4 which becomes q(4), next I see that q(4) is equal to 5, therefore r(0)=5.
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 Cheers,
 Stan H.
 
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