How do you plot #-8+3i# and find its absolute value?
From the origin, move 8 units to the left along the
This is the point (-8 ,3)
Since there is a right triangle formed from
#0to-8to3to0#we can use Pythagoras' theorem to calculate it's magnitude, which is the distance from the origin to the point (-8 ,3)
#rArrsqrt(8^2+3^2)=sqrt73larr" absolute value"#