https://padlet.com/birkenstockl1500/h3ppagrx3030 by Lucas Birkenstock en-us 2016-10-24 18:33:08 UTC 2016-11-16 05:32:02 UTC hello@padlet.com birkenstockl1500 https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/132822649 Summation notation: A formula used to show the sum of a pattern of numbers. Uses a sigma.
Sigma: The weird e-shaped sign used in summation notation
Recursive Formula: A formula that shows the solution to a pattern of numbers by using the answer to a previous one.
Secant Line:  a straight line joining two points on a function.]]> 2016-10-24 18:44:41 UTC https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/132822649 birkenstockl1500 https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/132824530 This video shows you how to use and solve sigma/summation notation. ]]> 2016-10-24 18:49:26 UTC https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/132824530 birkenstockl1500 https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/132825591 On day 1, there are two dots. On day 2, there are 6. On day 3, there are 18. Write the explicit formula for this pattern. 




Answer: y=2*3^x-1]]> 2016-10-24 18:52:50 UTC https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/132825591 birkenstockl1500 https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/133202825 To find the pattern of an arithmetic sequence:
 
last #-first #
-----------------------
# of jumps

To find the pattern of a geometric sequence

last #
---------  (to the __ root, which is how many jumps there are)
first # 

find slope between 2 points:
m=y2-y1/x2-x1]]> 2016-10-26 01:25:12 UTC https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/133202825 birkenstockl1500 https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/133203780 2016-10-26 01:32:25 UTC https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/133203780 birkenstockl1500 https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/133204172 2016-10-26 01:35:52 UTC https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/133204172 birkenstockl1500 https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/133205473 Summation notation: Hard to explain, the video that should be above this box will tell you how to do it. 
Explicit Formula: Pretty much a shorter version of recursive formula, to make an explicit formula you must find a sort of shortcut to find the solution to a certain pattern without using the previous solution like in recursive
Recursive Formula: Write out an equation using the last solution. Example: f(n)=f(n-1)+1 This equation means that in the pattern, numbers increase by 1 every time]]> 2016-10-26 01:47:11 UTC https://padlet.com/birkenstockl1500/h3ppagrx3030/wish/133205473