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Math-trig4.7: Exp and Log Functions and Models

Classnotes: 4.6 exp and log equations | 4.7 models Video Lessons 4.6 Exponential and Logarithmic Equations Solving exponential and logarithmic equations Solving Logarithmic Equations Solving Exponential Equations Using Logarithms Solving quadratic, absolute value, exponential, rational, radical, and logarithmic equations Video Lessons 4.7 Exponential and Logarithmic Models Logarithm Application: Magnitude of an Earthquake Exponential Decay App  […]

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Math-trig4.3-5: Logarithmic Functions

Classnotes: 4.3-4.4:| 4.5 Properties Video Lessons 4.3 Logarithmic Functions Introduction to Logarithms Evaluate Logarithms Without a Calculator – Whole Numbers Evaluate Logarithms Without a Calculator – Fractions Evaluate Common Logarithms on a Calculator Evaluate Common Logarithms Without a Calculator                                     Evaluate Natural Logarithms on the Calculator Properties of Logarithms Logarithms: Change of Base Formula Video Lessons 4.4 […]

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Math-trig4.1-2: Exponential Functions

Class Notes 4.1-2 Form (a, b; domain, range) Two parent graphs Transformations (a, b, asymptote) Exp fn vs Linear fn  (common ratio vs common difference) One-to-one property of exponentials finite and infinite/continuous growth rate (natural exp. Euler’s Number) Applications:  Bacteria growth Population growth Appreciation vs Depreciation (Cars, Houses) Compound Interest:  Trillion Dollar Equation Video Lessons […]

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Math-trig1.1: Functions

Video Lessons 1.1 Functions and Function Notation Introduction to Functions Domain & Range & Graphs Vertical & Horizontal Line Tests Evaluating functions using a Graphing Calculator Toolkit/Parent Functions Video Lessons 1.2 Domain and Range Domain and Range Interval & Set-Builder Notation Toolkit / Parent Functions & Domains  Piecewise Function:   Interpret & Graph Piecewise Function:  […]

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Math-trig1.5: Transformation of Functions

Parent functions The most inner function f(x) — coefficient of x is 1 3-5 points for easy calculation  f(2x+1) : consider 2x+1 –> x by (-1) , they by (1/2) Notes: corresponding  x (input) and y (output)  f(x) = f(2x+1) , smaller input x to make 2x+1 corresponding to x in f(x) Stacking the function […]

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Math-trig1.3: Average Rate of Change

A linear approximate divide and conquer change complex into simple things HOW: approximation which one is simpler: parabola or a line?  Can we study a line with infinite ends? — Line segment (between two points) — Domain and Range In reality, we don’t care about a thing if it does not change at all. We […]

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三个和尚

很久以前,小山上的庙里住着一个小和尚。每天早上,小和尚都要到山脚下的小河边去挑水,庙里的水缸总是满满的。  Long time ago, there lived a little monk in a temple on the top of a hill. Every morning, the little monk would go fetch water from the river at the foot of the hill. The water tank in the temple was always full. 很久以前:long time ago 以前:before, ago 曾经:once upon a time 挑:to […]

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Math: 1st – 6th Grade

Three Key Topics in Elementary School Distributive property | Distributive Property | Review on Order of Operations and Distributive Property |  Practice-Distributive property | Factoring Fraction division and multiplication | Fraction division Proofs Negative numbers |  Drive these three concepts home with your children, then they are good to go for middle school.  Relate operations: addition […]

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