​4 steps to find inverse function

•Step1: Let f(x) = y

•Step 2: Interchange x and y

•Step 3: Solve for y

•Step 4: Change y to f^-1(x)

Subject | Subject

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​Find the inverse of the following function: f(x) = x -3

​Transformations of functions

• uses multiplication / division​

• common ratio

• exponential functions​

Geometric (Unit 4)

• uses addition/subtraction​

• common difference​

• linear functions​

Arithmetic (Unit 2)

Arithmetic vs Geometric Sequences

Make sure you know the key differences

​Geometric Sequence​

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​Common ratio​

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​The amount by which we multiply each time.

​Arithmetic Sequence​

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​Common difference​

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​Represented in the sequence formula

as d​