What is the image of the vector v=⟨2,−1⟩\mathbf{v} = \langle 2, -1 \ranglev=⟨2,−1⟩ under the scalar operation c=−12c = -\frac{1}{2}c=−21?
⟨−4,2⟩\langle -4, 2 \rangle⟨−4,2⟩
⟨−1,12⟩\langle -1, \frac{1}{2} \rangle⟨−1,21⟩
⟨4,−2⟩\langle 4, -2 \rangle⟨4,−2⟩
⟨1,−12⟩\langle 1, -\frac{1}{2} \rangle⟨1,−21⟩