Step-by-step explanation:
Good evening ,
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Answer:
A. y=x-1
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Step-by-step explanation:
Look at the photo below for the details.
:)
Let's assume that the number we are using is
, where
and
are real numbers. The conjugate of this would be
. Multiplying the two together would get
. Since
and
are both real numbers, the multiplication of the conjugate must also be real.