How do you find #abs( -4 -3i )#? Precalculus Complex Numbers in Trigonometric Form Complex Number Plane 1 Answer Name Apr 15, 2016 5 Explanation: The magnitude of any complex number in the form #x+yi# is #x^2+y^2# #|-4-3i|=sqrt(-3^2+(-4)^2)=5# Answer link Related questions What is the complex number plane? Which vectors define the complex number plane? What is the modulus of a complex number? How do I graph the complex number #3+4i# in the complex plane? How do I graph the complex number #2-3i# in the complex plane? How do I graph the complex number #-4+2i# in the complex plane? How do I graph the number 3 in the complex number plane? How do I graph the number #4i# in the complex number plane? How do I use graphing in the complex plane to add #2+4i# and #5+3i#? How do I use graphing in the complex plane to subtract #3+4i# from #-2+2i#? See all questions in Complex Number Plane Impact of this question 1462 views around the world You can reuse this answer Creative Commons License