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Ex: Solve x 2 + 6x +10 = 0 a = b = c = 1 st 2 nd

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Solve x 2 + 7x +14 = 0 a = b = c = 1 st 2 nd

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Questions on any previous hw?

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Graphing in the Complex Plane

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The Complex Plane

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Graphing in the complex plane

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Absolute Value of a Complex Number The distance the complex number is from the origin on the complex plane. If you have a complex number (a + bi) the absolute value can be found using:

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Find the absolute value of the complex number. 1. 15 + 8i

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Find the absolute value of the complex number. 2. -5 + 6i

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Find the absolute value of the complex number. 3. -2 – 4i

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Find the absolute value of the complex number. 3. 9i

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Examples 1. 2. Which of these 2 complex numbers is closest to the origin (smallest distance)? -2+5i

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Try These!!! 1. 2. Which of these 2 complex numbers is closest to the origin? 3i3i

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Assignment p.19 #1 – 17 p. 20 #1 – 8 p.94 #8, 10

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