Question

Which number represents the sum of -8 and -i?

A. 8i
B. -8i
C. -8-i
D. -8+i

Answer 1

The answer is c. A would be multiplication as would b. D would be the answer if i was positive, but it’s not. So the answer is c.

Answer 2

C. -8-i

Explanation:

To find the sum of -8 and -i, you simply add the real parts and the imaginary parts separately.

The real part of -8 is -8, and the real part of -i is 0. Adding them together, we get -8 + 0 = -8.

The imaginary part of -8 is 0, and the imaginary part of -i is -1. Adding them together, we get 0 + (-1) = -1.

Therefore, the sum of -8 and -i is -8 - i.

So, the correct option is:

C. -8 - i

Hope this helps!