Answer: It is not impaired
Step-by-step explanation:
Goodwill $ 400,000 
Carrying amount. $ 800,000 
Fair Value $ 1,000,000 
Here, the fair value is more than the carrying amount. When the fair value or 
the market value is more than the carrying amount, there is no need of the impairment of goodwill.
a.Goodwill associated with the MLD is not impaired because the fair value is greater than the carrying amount of MLD's net assets including the goodwill. 
b. No journal entry is required, since there is no impairment.