## Rube Goldberg Machine

①Ball goes down. ②Ball goes into the top half of plastic bottle. ③Ball goes throgh the strow. ④Ball drops the small container and it bounce the other small 　　　　　　　container. ⑤Ball pushes the LEGO. ⑥ My Rube Goldberg Machine is completed. This is my project′s movie.IMG-0178-ryn1kd

## Math 11 unit2

This week in Math, we finished our unit on Absolute Values and radicals. This equation is how to radicals calculate.

## Math 11

General Term tn＝t1＋d（n-1) Arithmetics sum Sn＝n(t1＋tn)/2 General Term tn＝ｔ１×r＾2-1 Geometric sum  Sn=t1(1-r＾ｎ)／1－r, r≠0 Infinite Geometric sum S∞＝t1/1-r   I learned these formula.

## Week17 # Math10

This week I learned about solving systems of Liner Equations by Elimination.

## Week16

This week I learned Genaral form and y-intercept form. The  point -slope form of equitation of a line is y-y1 = m(x-x1) where m is the slope of the line, and (x1,y1) represents a point on the line .

## Math 15

This week I did write my initials

## Week 14

This week I leaned the form y=mx+b can be used to determain the equation. And the gragh of an equation in the form y=mx+b is a straight line with slope m and y-intercept b.

## Math 10

I wrote the this graph

## Math10

I wrote this graph http://www.desmos.com/calculator/nxwapm3paj

## Math 10 Graph

I wrote the graph of the initial of the name https://www.desmos.com/calculator/3dnvegvpmm