Solve the Equation for X $$\left| \begin{array} { l l } x & 1 \\2 & x\end{array} \right| = - 1$$

question 323

Multiple Choice

Solve the equation for x.
- $$\left| \begin{array} { l l } x & 1 \\2 & x\end{array} \right| = - 1$$

• A) \(\{ 1 \}\)
• B) \(\{ - 1 \}\)
• C) \(\{ - 1,1 \}\)
• D) \(\varnothing\)

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Definitions:

Histogram

A type of bar chart used in statistics to represent the distribution of data by showing the number of data points that fall within a range of values.

Normally Distributed Curves

Graphical representations of a normal distribution, showing how data points are symmetrically distributed around the mean.

Mean

A statistical measure representing the average value in a set of numbers, calculated by dividing the sum of all values by the number of values.

Median

The middle value in a list of numbers, which divides the dataset into two halves.