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Math Hep please

 Sep 18, 2019
 #1
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The lead term determines the end behavior....we only have 4 rules to remember

 

1)  Sign on lead coefficient  positive  and even exponent on the variable on the lead term

As  x →  pos/neg infinity , f (x) →  pos infinity  

 

2) Sign on lead coefficient positive  and odd exponent on the variable on the lead term

As x → neg infinity,  f(x) →  neg infinity

As x → pos infinity, f(x) →  pos infinity

[ Note that this one would apply to the first polynomial]

 

3)  Sign on lead coefficient  negative   and an even exponent on the variable on the lead term

As x →  neg infinity, f(x)  → neg infinity

As x →  pos infinity, f(x) → neg infinity

[ This applies to the second polynomial ] 

 

4)   Sign on lead coefficient negative and an odd exponent on the variable on the lead term

As x →  pos/neg infinity, f(x) →  neg infinity

 

 

 

cool cool cool

 Sep 19, 2019
edited by CPhill  Sep 19, 2019

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