Quiz 8 Ma 322 005 Name ______________

1. Find the projection of onto the subspace of spanned by [0,1,4] and [1,1,1].

2. Find the least squares solution to the overdetermined system Ax = b, where A = and b = .

3. Find the polynomial which best fits the data [0,1], [1,2], and [2,4] in the sense of least squares. Find the error.

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