# Week 17 pre- calculator

this week I learned about trigonometry, it’s including the angles and the side. The reference angle for all 4 angles is the acute angle that the terminal arm makes with the x-axis.

# My reflection 2017

2017 self -reflection
2017 is a busy, exciting and challenge year in my life, I wasted a half year for study grade 9 stuff in American, but I also had a lot of essays to write. I made a lot of American friends there. Then I come back to China in June. I had a good summer holiday, I and my family went to Malaysia to travel. In August I went to Vancouver downtown language school study English for a month. And September, I started studying in riverside high school. In this year most of my time being abroad, everything is new for me. I began to use English all the time. Sometimes I will lose my way when I’m hanging out by myself, I don’t know the way to come home. Food is also a problem for me, some foods I don’t like it, but I have to eat, like pasta, pizza, I don’t know why local people like to eat them. The last is living habits, sometimes I did something wrong but I don’t know, for example sometimes I’ll spit the rest of the food on the table and it’s not allow, or sometimes forget say not thanks when someone gives you something you don’t want it. But I have already adapted it in this year.

# Week 15 pro-calculus

this week I learned about adding and subtracting rational expression with binomial and trinomial denominators,  we need to simplify the function.

# Week 14 pre-calculator

this week I learned about how to graphing reciprocals of quadratic functions.  With one vertical asymptote and with two vertical asymptotes.

# Week 13 pre-calculator

last week I learned about solving absolute value equations, we were solving by graphing. Graphically for algebraically linear and quadratic. We need make a graphing to solve the equation.

# Week 12 pre-calculator

This week I learned about how to solving systems of equations graphically. It’s mean when 2 or more equations are needed to find a solution.