# 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.

# 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 10 pre-calculator

I didn’t learn anything this week，but I reviewed what I learned before. Such as Sequences and series, Absolute Value and Radicals and Quadratic equations, etc.

# week 9 pre-calculator

this week I learned about how to solving problems with Quadratic functions, some problems can be solved by writing,  Then graphing a quadratic function. And determining maximum or minimum related to operations with numbers. And modeling a problem for maximizing profits.

# Week 7 pre-calculus

This week I have learned about the properties of quadratic function. And we learn it from its graph.

Vertex

y-intercept

domain

range

line of  symmetry