Answer:
we have
-3+4i
let magnitude be |z|
|z|=
|z|=5 unit
Yes, it is a function
243
Step-by-step explanation:
-5(1-4)^2+18
(-5+20)^2+18
225+18
=243
x = -36
Add 12 to both sides
x - 12 + 12 = x
(12 cancels out)
-48 + 12 = -36