In Exercises 1–10, plot each complex number and find its absolute value. z = 4i
Table of contents
- 0. Review of College Algebra4h 45m
- 1. Measuring Angles40m
- 2. Trigonometric Functions on Right Triangles2h 5m
- 3. Unit Circle1h 19m
- 4. Graphing Trigonometric Functions1h 19m
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations1h 41m
- 6. Trigonometric Identities and More Equations2h 34m
- 7. Non-Right Triangles1h 38m
- 8. Vectors2h 25m
- 9. Polar Equations2h 5m
- 10. Parametric Equations1h 6m
- 11. Graphing Complex Numbers1h 7m
11. Graphing Complex Numbers
Graphing Complex Numbers
Multiple Choice
Plot the complex number z=5 on the graph below.

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Verified step by step guidance1
Identify the complex number given, which is z = 5.
Understand that a complex number is of the form z = a + bi, where a is the real part and b is the imaginary part.
For the complex number z = 5, the real part a = 5 and the imaginary part b = 0.
On the complex plane, the horizontal axis (Re) represents the real part, and the vertical axis (Im) represents the imaginary part.
Since the imaginary part is 0, plot the point at (5, 0) on the real axis, which is 5 units to the right of the origin on the horizontal axis.
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