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Comment : Vector spaces quiz
Comment : This quiz is designed to test your knowledge of vector spaces and related concepts
Comment : such as linear combinations, bases, dimension, spanning, and linear dependence and independence.
Comment : For an extra challenge, try covering up the answers before attempting the question.

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Question 1: Let V be an vector space, and let W be a subset of V. What does it mean when we say that W is closed under addition?

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	Whenever x and y are in V, then x+y is in V.
	Whenever x and y are in W, then x+y is in V.
	Whenever x and y are in W, then x+y is in W.
	Whenever x and y are in V, then x+y is in W.
	If x+y is in W, then x and y are in W.
	W(x+y) = Wx + Wy for every two vectors x and y.
	Every vector in W is the sum of two vectors in W.