To solve the problem, we need to identify the term used for a piece of information shown in a graph that is assigned to the data series.
1. Understanding the Components:
2. Analyzing the Question:
The question states that it is a piece of information assigned to the data series and shown in a graph. This best describes a data point, which is the actual graphical representation of the value in the chart.
Final Answer:
Correct Option: (A) data point
If \[ A = \begin{bmatrix} 1 & 2 & 0 \\ -2 & -1 & -2 \\ 0 & -1 & 1 \end{bmatrix} \] then find \( A^{-1} \). Hence, solve the system of linear equations: \[ x - 2y = 10, \] \[ 2x - y - z = 8, \] \[ -2y + z = 7. \]