Solve the System by the Method of Substitution $\left\{ \begin{array} { l } y = x ^ { 3 } + 2 x ^ { 2 } - 1 \\y = x ^ { 2 } + 12 x - 1\end{array} \right.$

question 3

Multiple Choice

Solve the system by the method of substitution. $\left\{ \begin{array} { l } y = x ^ { 3 } + 2 x ^ { 2 } - 1 \\y = x ^ { 2 } + 12 x - 1\end{array} \right.$

• A)(-4, -33), (-3, -28), (1, 12)
• B)(-4, -33), (-1, -12)
• C)(3, 44), (1, 12)
• D)(-4, -33), (3, 44), (0, -1)
• E)no real solution

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Definitions:

Range

The difference between the highest and lowest scores in a dataset.

Variability

The extent to which data points in a set differ from each other and from their average, or the degree of dispersion within the dataset.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values.

Variability

The degree to which observations in a dataset or statistical distribution vary from the mean and among themselves.