Question

Could someone help me out with this question..?
Which of the following is the conjugate of a complex number with −4 as the real part and 2 as the imaginary part?

2i − 4

2i + 4

−4 − 2i

−4 + 2i

Answer 1

the real part stays the same and the imaginary part changes sign

Answer 2

i get feelings all the time but in math definitions and logic must corroborate the feelings

Answer 3

you have to change the sign on the imaginary term to get the conjugate.

Answer 4

now she hears me...

Answer 5

not b, c. -4 is the real part. the sign on the imaginary part changes sign.

so -4 + 2 i is the original and -4 - 2i is the conjugate.

Answer 6

you got it girl