Exercises: Represent Complex Numbers on the Complex Plane

Show your work. For polar form, use exact values where possible (e.g., $\cos 60° = \frac{1}{2}$).

Grade 9·20 problems·~35 min·Common Core Math - HS Number and Quantity·standard·hsn-cn-b-4

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Warm-Up: Review What You Know

The complex number $-3i$ is plotted at which coordinates on the complex plane?

$(3, 0)$

$(0, -3)$

$(-3, 0)$

$(0, 3)$