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

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Presentation transcript:

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

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

Questions on any previous hw?

Graphing in the Complex Plane

The Complex Plane

Graphing in the complex plane

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:

Find the absolute value of the complex number i

Find the absolute value of the complex number i

Find the absolute value of the complex number – 4i

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

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

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

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