Module 9: Quadratic Functions by Lucas Birkenstock https://padlet.com/birkenstockl1500/5iu18o34xtq0 by Lucas Birkenstock en-us 2017-04-30 23:30:25 UTC 2025-11-12 23:26:43 UTC hello@padlet.com Section- Linear birkenstockl1500 https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090308 2017-04-30 23:32:12 UTC https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090308 Section- Quadratic birkenstockl1500 https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090328 2017-04-30 23:32:21 UTC https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090328 Section- Exponential birkenstockl1500 https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090339 2017-04-30 23:32:28 UTC https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090339 Example birkenstockl1500 https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090375 n | f(n)
0 0
1 5
2 10
3 15
How I know this is linear:  This is a linear function because n increases by 5 every single time.
Explicit: f(n)=5x
Recursive: f(n)= f(n-1)+5
f(0)=0 ]]> 2017-04-30 23:32:58 UTC https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090375 Example birkenstockl1500 https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090775 n | f(n)
1 -3
2 0
3 5
4 12
5 21
How I know this is quadratic: The second difference is common. 
Explicit: f(n)= n^2 -4
Recursive: f(n)=f(n-1) +2n+1
f(1)=-3]]> 2017-04-30 23:38:01 UTC https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090775 Example birkenstockl1500 https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090959 n | f(n)
1 2
2 4
3 8
4 16
5 32
How I know this is exponential: f(n) is always multiplied by 2
Explicit: 2^n
Recursive: f(n)=f(n-1)*2
f(1)=2]]> 2017-04-30 23:40:50 UTC https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169090959 Helpful Video birkenstockl1500 https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169092568 This video helps you to understand how to write quadratic functions in explicit form. ]]> 2017-05-01 00:03:58 UTC https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169092568 A comparison of the three types birkenstockl1500 https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169092648 2017-05-01 00:04:58 UTC https://padlet.com/birkenstockl1500/5iu18o34xtq0/wish/169092648