How do you plot #-4+4i# and find its absolute value?

1 Answer
Jan 18, 2018

In the Argand plane, the real axis is the x-axis and the imaginary axis is the y-axis. Do you get the point?

For its absolute value,
#|z| = |-4 +i4|#

Which is the distance of this point in the Argand plane from the origin.

for calculating the absolute value of any imaginary point Z = x+iy,

#|Z| = |x+iy|#
#|Z| = sqrt(x^2 + y^2)#

Use the above concepts and find the absolute value of the above imaginary point on your own.