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a). Find the specified function values for the following polynomials: 

 

1. Q(t) = 9t3 + 8t2 - 4t - 9

 

Find Q(-3), Q(-1) and Q(-b)

GAMEMASTERX40  Sep 17, 2018
 #1
avatar+3189 
+4

We're just plugging in values of \(t.\)

(a): \(9(-3)^3+8(-3)^2-4(-3)-9=-168.\)

So, just plug the values of \(t\), listed in your question, like how I solved it!

smileysmiley

tertre  Sep 17, 2018
edited by tertre  Sep 17, 2018
 #2
avatar+991 
+2

Uh, Dude? I did what you said to solve the problem but it gave me a different answer which was -168. I think you did something wrong.

GAMEMASTERX40  Sep 17, 2018
 #3
avatar+2248 
+3

Rick, it appears as if tertre's slight typo has caused an askew answer. 

 

The original function was defined as \(Q(t)=9t^3+8t^2-4t-9\). Unfortunately, terte evaluated the function as \(Q(t)=9t^{\textcolor{red}{2}}+8t^2-4t-9\). What a tragic error!

 

Continue evaluating the function at \(Q(-1)\text{ and }Q(-b)\), and you will be done quite soon. 

 

**OOPS, I know you have told me to call you Rick in future posts.**

TheXSquaredFactor  Sep 17, 2018
edited by TheXSquaredFactor  Sep 17, 2018
 #4
avatar+991 
+3

It's okay man! Thanks for the help!

GAMEMASTERX40  Sep 17, 2018
 #5
avatar+3189 
+3

Lol, silly mistake, didn't read the cube sign.......

tertre  Sep 17, 2018
 #6
avatar+2248 
+2

That's ok! We got your back in this community.

TheXSquaredFactor  Sep 17, 2018

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