Exponents and Logarithms

Today, we will be reviewing how to graph and solve exponential and logarithmic equations.

Exponential functions start very, very small and grow rapidly. It is commonly used to calculate interest, half-life, or population growth.FullSizeRender 87
Just as subtraction opposes addition and division opposes multiplication, logarithms oppose exponents. The logarithmic function is the inverse of the exponential function.

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The most important thing to remember is that you may get an answer that does not satisfy the equation. When dealing with logs and exponents, always make sure to check your answer.

Matrices

Matrix: A rectangular array of numbers, symbols, or expressions, arranged in rows and columns

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I spent an hour to rewrite my notes on matrices today. If you have time, I highly recommend rewriting notes, picking out the most important definitions and explanations. With some colors and diagrams, this method creates an excellent study guide! Afterwards, I always make sure I have enough time to do plenty of practice problems.