Review — Difficulty 7/10

Algebra II · Honors · Complex numbers (intro)

Review skills for this standard. Write answers where shown.

Together with a parent

1. (13 + 2i) + (11 − 5i) = ___ 2. (12i)(−2i) = ___ 3. Plot 12 − 3i on the complex plane. ___

Written review

1. (15 + 2i) + (13 − 5i) = ___ 2. (14i)(−1i) = ___ 3. Plot 14 − 3i on the complex plane. ___ 4. Multiply: (13 + i)(13 − i) = ___ 5. Solve x² + 16 = 0 in ℂ: x = ___ 6. Real part ___ , imaginary part ___

_See printable PDF for diagram._

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Skills checklist

• [ ] Adds, subtracts, and multiplies complex numbers
• [ ] Uses i² = −1 correctly
• [ ] Plots complex numbers in the plane
• [ ] Explains Complex numbers (intro) without prompts

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