Absolute Value 6 + -8i and 3 + -7i

a = bi = <-- Enter a and bi piece
c = di = <-- Enter c and di piece (not needed for square root or absolute value or conjugate)

Evaluate the absolute value of the complex number |6 - 8i|

The absolute value of a complex number is the distance from 0 to that number on the imaginary plane
|a + bi| = √a2 + b2
Given a = 6 and b = -8, we have:
|6 - 8i| = √a2 + b2
|6 - 8i| = √62 + -82
|6 - 8i| = √36 + 64
|6 - 8i| = √100
|6 - 8i| = 10