1.e4 e5 2.f4 d5 is not incorrect.
This is one of the mainlines of the King's Gambit
Hi there, @my137thaccount. This little game is actually for a specific line of the King's Gambit known as the Bishop's Gambit.
This is the starting page if you missed it - click here
That is incorrect. Try again.
How does black respond to white's 1.e4 e5 2.f4
a) 2...d6
b) 2...d5
c) 2...exf4