1/ I learned about function but it’s more deeper than the program I studied in my home country. It was like we just know the way how to solve it faster. But in Pre-Cals11 I can know a lot of diffirent way like Factoring-Complete the Square- Quadractic Formula. Or a lot of diffirent type like parabola, hyperbola, linear,…
2/ Second one, after a lot of test. I just leanred about like I should be careful when i do the test. Also sort the time suitable for myself to complete it well.
3/ Third one, I learned how to share and discusted in group about the problem Ms.Burton teach in class.
4/ Fifth, about Absolute Value, it was like the things i studied before in my country. But for a long time, so i forgot a lot but right now i am studying it again, it reminds me a lot. And also know a lot of faster way to do it
5/ Last one, Before when i was still studying in Vietnam, i hated to do about graphing or drawn something a lot. Because it’s kinda complicated but when i study about graphing here, parabola, linear, asymptotes. It really made me insteresting and changed my mind.
Especially, Pre-Calculus helps me realized a lot of thing like i should more be careful when i do test and dont rush.!
This week in class Pre-Calculus 11 , we learned about Since and Cosine Law and how we can apply it to find the length side and angle of a triangle.
This week we learned about application of rational equations.
The key for this part :
First : Read the problem slowly and carefully what is being asked.
Second : Introduce a variable to represent an unknown number
Third : Write an equation the questions gave then solve
And the last one : Write anser in sentence with the unit (km/h,cm..)
Note : less than, up stream (-), greater than or added, down stream (+)
Let’s start with example to know more about it :
Myra takes 2 hours to plant 450 flower bulbs. Francis takes 3 hours to plant 525 flower bulbs. Working together, how long should it take them to plant 1500 bulbs?
The strategies for adding and subtracting rational numbers can be used to add and subtarct rational expressions : write the expressions with common denominator.
For the example :
So the non-permissible value is x = 0
A common denominator is
This week we started with new chapter about rational expressions and equations.
So we will start with example so i can show you more clear about knowledge of it.
This week we learned how to graphing recipropals of Quadratic Function
So let’s see how to graph it.
This week we learned about how to solve linear quadratic systems and quadratic-quadratic systems by using algebra to prepare for Unit Test. So right now. Let’s start with example to understanding about it.
This week we started with new chapter: Solving quadratic inequalities in one variable. I think it same with quadratic function. So we can factor to solve it. So now let’s start with example.
4 is boundary points
As I think, in all four chapters I have a clear grasp of the essential knowledge that only chapter 1: Arithmetic and Geometric Sequence. I need to review important knowledge to prepare for Unit Test.
This week we learned about equivalent forms.
So In short this chapter.
We learned 3 form to write quadratic function :
First one : General form :
Second one : Standard form :
And the last one : Factored form :
Cause factored form is new one we just learned so i will introduce little bit about it.
Let’s start with example :
And beside how can we change from the general from to factored or standard from. I will show you right now.