Question

Which graph shows the line joining the complex numbers -i and 2 + i?

Answer 1

how do you plot 2+i?

Answer 2

the x axis is the real part
y axis is the imaginary part

Answer 3

so two units to right and one unit up

Answer 4

that is the first step

Answer 5

then locate were -i is

Answer 6

and draw a line btw the two points determined by the two points that you draw

Answer 7

I have know idea how to find i.

Answer 8

i is the y axis
so -1 means -i
+i mean one unit up

Answer 9

it is just like the xy plane you are familiar with

Answer 10

The answer is (A).