A line has vector equation \begin{pmatrix}1\\2\\3\end{pmatrix}\begin{pmatrix}1\\1\\1\end{pmatrix}$$. Which point lies on the line?
Answer and explanation
Correct answer: D.
- Step 1: Put : the point is . Step 2. That gives . **Answer: . Why not the others:** : The -coordinate does not match any value of . : The coordinates do not fit a single value of . : The coordinates are in the wrong order.
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