MHB How would I plot the following signals?

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I am extremely confused as how to go about this, any help would be greatly appreciated!

The signals are:

a) 𝑠(𝑛1, 𝑛2) = 𝑒(𝑛1, 𝑛2)𝑒(𝑛1, 𝑛2 + 2)

b) 𝑠(𝑛1, 𝑛2) = 𝛿(𝑛1 βˆ’ 𝑛2 + 1)
 
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