SOLUTION: I am horrible with absolute value and also imaginary numbers. Could you please help me with: What is the absolute value of 6-8i ?

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Question 183637: I am horrible with absolute value and also imaginary numbers. Could you please help me with: What is the absolute value of 6-8i ?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
abs%28a%2Bbi%29=sqrt%28a%5E2%2Bb%5E2%29 Start with the absolute value of a complex number formula.


abs%286-8i%29=sqrt%28%286%29%5E2%2B%28-8%29%5E2%29 Plug in a=6 and b=-8.


abs%286-8i%29=sqrt%2836%2B%28-8%29%5E2%29 Square 6 to get 36.


abs%286-8i%29=sqrt%2836%2B64%29 Square -8 to get 64.


abs%286-8i%29=sqrt%28100%29 Add.


abs%286-8i%29=10 Take the square root of 100 to get 10


So the answer is abs%286-8i%29=10