Module 9 Padlet- Quadratic Functions by Kaela Fabian https://padlet.com/fabiank3528/ld4to55oo0wx Kaela Fabian en-us 2017-04-27 17:02:50 UTC 2025-10-23 01:50:49 UTC hello@padlet.com Video fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168699055 2017-04-27 17:04:39 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168699055 Exponential Model fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168699481       n          |         F(n)
      0          |          2
      1          |          4
      2          |          8
3 | 16 
 ]]> 2017-04-27 17:05:58 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168699481 Explicit fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168701326 To get this explicit equation you must find how to get from x to y. The explicit equation for the model above is, 
f(n)= 2^n+1]]> 2017-04-27 17:11:15 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168701326 Recursive fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168703399 To find the recursive equation you need to find the first difference between two y values. In this model the recursive equation is, f(0)=2
f(n)=f(n-1)*2]]> 2017-04-27 17:17:13 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168703399 Exponential fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168705034 This table to the left is exponential because there is a common ratio]]> 2017-04-27 17:22:53 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168705034 Quadratic fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168706646  The 2nd difference is constant which shows that this is a quadratic model

]]> 2017-04-27 17:27:34 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168706646 Quadratic Table fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168707156 n | f(n)
1 | -3
2 | 0
3 | 5
4 | 12
5 | 21

]]> 2017-04-27 17:28:32 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168707156 Recursive Quadratic: fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168707927 f(1)=-3
f(n)=f(n-1)+2n-1
First, you have to find f(1). Then, you have to find how to get from f(n-1) to f(1)
]]> 2017-04-27 17:30:38 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168707927 Explicit Quadratic fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168708228 In order to find the explicit, you have to find the difference between f(n) and f(n-1).
f(n)=n^2-4]]> 2017-04-27 17:31:37 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168708228 Linear Model fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168708487 1   |   -3
2   |   -7
3   |   -11
4   |   -15
5   |   -19

]]> 2017-04-27 17:32:28 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168708487 Linear fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168708978 this table is linear because the first difference is constant, it subtracts 4 every time.]]> 2017-04-27 17:34:13 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168708978 Recursive fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168709128 f(1)=-3   f(n)=f(n-1)-4
This is recursive because it is subtracting 4 each time.
]]> 2017-04-27 17:34:39 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168709128 Explicit fabiank3528 https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168709384 f(n)= -4n+1
It is how you go from the x column to y
]]> 2017-04-27 17:35:16 UTC https://padlet.com/fabiank3528/ld4to55oo0wx/wish/168709384