+0  
 
0
289
3
avatar+266 

 Jan 27, 2016

Best Answer 

 #1
avatar+96067 
+15

Let's first look at what it's NOT......!!!

 

It's not linear because the changes in y's and x's are not uniform

 

Its not a quadratic because the end behavior would be either up-up  or down-down   ......and the data indicates that this is up-down

 

It could be a cubic in some form such as : y = -ax^3-bx^2 - cx

 

 

 

 

cool cool cool

 Jan 27, 2016
edited by CPhill  Jan 27, 2016
 #1
avatar+96067 
+15
Best Answer

Let's first look at what it's NOT......!!!

 

It's not linear because the changes in y's and x's are not uniform

 

Its not a quadratic because the end behavior would be either up-up  or down-down   ......and the data indicates that this is up-down

 

It could be a cubic in some form such as : y = -ax^3-bx^2 - cx

 

 

 

 

cool cool cool

CPhill Jan 27, 2016
edited by CPhill  Jan 27, 2016
 #2
avatar
+5

i have NO cluelaugh

 Jan 27, 2016
 #3
avatar
0

If it's linear the first difference column will be constant,

if it's a quadratic the second difference column will be constant,

if it's a cubic the third difference column will be constant, ..........etc etc

 Jan 28, 2016

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