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avatar+244 

 Below is the table of values of a function. Write the output when the input is n.

 

input: 2, 5, 7, n

output: 8, 20, 28, ?

 

Please help!

 Oct 31, 2017
 #1
avatar+98141 
+1

Output  =  4n

 

 

cool cool cool

 Oct 31, 2017
 #2
avatar+244 
+1

Thanks. How about when its

 

Input: 1,2,3,4,n

output: 11,15,19,23?

 Oct 31, 2017
 #3
avatar+98141 
+1

How  about

 

Output  =   4n  + 7   ????

 

Here's how this is obtained

 

Slope  =     [ 15 - 11] /  [ 2 - 1 ]   =   4/ 1 =  4

 

So...using the slope and any  (input, ouput)  point - I'll use (1, 11) -  we have

 

Output  =  4 ( n - 1) + 11

 

Output  = 4n - 4 + 11

 

Output  = 4n + 7

 

 

cool cool cool

 Oct 31, 2017
edited by CPhill  Oct 31, 2017

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