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How do you plot #5i#?

Answer 1

I tried this:

We can use the Complex Plane (aka, Argand-Gauss Plane) where on the horizontal axis you plot the real parts of a complex number while on the vertical one you plot the coefficient of the imaginary part.
So in your case you have a complex number in the form:
#z=0+5i#
the real part is zero while the imaginary is #5#.
You get:

The dot represents your complex number on the Complex Plane.

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Answer 2

Benjamin Achtenberg

It's just a vertical vector along the yy axis with 5 measures long.

You have the x dimension for the real part and the y dimension for the imaginary part. If the real part is zero, your value is along the y axis graph{100000x [-5, 5., 0, 5]} .

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Answer 3

Serenity Johnson

To plot the complex number 5i on the complex plane, where the horizontal axis represents the real part and the vertical axis represents the imaginary part, you would locate the point (0, 5) on the vertical axis. This represents the complex number 5i, where the real part is 0 and the imaginary part is 5.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.