Question

Which complex number will be located above the real axis and to the left of the imaginary axis?

4i



2 − 4i



4i − 1



-1 − 2i

Answer 1

A complex point will be above the real axis if the sign of the imaginary part is +.

A complex pt. will be to the left of the imaginary axis if the sign of the real

part is -.

Check out 4i - 1. Will this point be above the x-(real) axis and to the left of the imaginary axis?

Answer 2

4i-1

Explanation: