Practice problem
Let x⃗=[−2−3−7]\vec{x} = \begin{bmatrix} -2 \\ -3 \\ -7 \end{bmatrix}x=−2−3−7 and y⃗=[82−3]\vec{y} = \begin{bmatrix} 8 \\ 2 \\ -3 \end{bmatrix}y=82−3. What is x⃗⋅y⃗\vec{x} \cdot \vec{y}x⋅y?
0
1
-1
156
Type a concept, like “slope” or “photosynthesis”.
