Solve the System by Using Any Method $$\begin{array} { l } y = x ^ { 2 } + 7 x - 4 \\y = 5 x - 5\end{array}$$

question 114

Multiple Choice

Solve the system by using any method.
- $$\begin{array} { l } y = x ^ { 2 } + 7 x - 4 \\y = 5 x - 5\end{array}$$

• A) \(\{ ( - 1 , - 10 ) , ( 1,0 ) \}\)
• B) \(\{ ( 1,0 ) \}\)
• C) \(\{ ( - 1 , - 10 ) \}\)
• D) { }

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Definitions:

Percentile Rank

A score indicating the percentage of scores in a distribution that a particular score is equal to or higher than.

Cumulative Distribution

A method of converting a frequency distribution of scores into increasing percentages as a function of the percentage of scores counted. A bar graph is often generated by placing the class interval scores along the x-axis and the cumulative percentages along the y-axis.

Frequency Polygon

A method of converting a frequency distribution of scores into a line graph. After combining scores by class interval, the class intervals are placed along the x-axis and the frequency of scores along the y-axis.

Positively Skewed Curve

A set of test scores in which the majority fall at the lower or negative end. It is said to be a positively skewed curve or distribution because a few “positive” or high-end scores have stretched or skewed the curve to the right.