Section – Complex Numbers

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Presentation transcript:

Section 4.8.1 – Complex Numbers Objective: Identify, graph and use complex numbers EQ: What are imaginary numbers, and how do I use them?

Essential Understandings Imaginary Unit If then Complex Numbers Number in the form of a – is the real part b – is the imaginary part

Essential Understandings Complex Number Plane x-axis is the real axis y-axis is the imaginary axis Points are (a, b) Absolute Value of a complex number Distance from the origin in the complex plane.

Ex. 1 – Simplify

Ex. 2 – What are the graph and absolute value of

Ex. 3 – Adding and subtracting complex numbers

Ex. 4 – Multiplying complex numbers (remember, )