Solve the homogeneous system of linear equations. (Use the parameter r.) X1 + 3x2 - X3 = 0 X₁ + 4x₂ + x3 = 0 3x1 + 10*2 - *3 = 0 (X₁, X₂, X₂) = Show that the set of solutions forms a subspace of R³. The set is-Select- under addition. The set is-Select- under scalar multiplication. Therefore, the set of solutions forms a subspace of R³. Give the geometrical interpretation of the subspace. The set is the line defined by the vector

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