Mathematics 10 First Term Reviewer Flashcards

A collection of vocabulary flashcards defining key terms and concepts from the Mathematics 10 First Term Reviewer.

Solution Set of an Inequality

All values that make the inequality true.

Closed Circle

A symbol on a number line graph indicating that the endpoint value is included in the solution set.

Parentheses $(\text{ })$

Symbols used in interval notation to indicate that both endpoints are excluded from the solution set.

Critical Values

The zeros of a related quadratic equation that divide the number line into test intervals.

Dashed Parabola

The boundary curve used when graphing a strict quadratic inequality in two variables, showing that points on the curve are excluded.

Quartiles

Measures of position that divide an ordered data set into four equal parts.

$75\text{th}$ Percentile ($P_{75}$)

A measure of position describing a value with about $75\%$ of the data at or below it.

Fourth Decile ($D_4$)

A measure of position that is equivalent to the $40\text{th}$ percentile ($P_{40}$).

Second Quartile ($Q_2$)

The measure of position that is equal to the median of an ordered data set.

Seventh Decile ($D_7$)

A measure of position that is equivalent to the $70\text{th}$ percentile ($P_{70}$).

Interquartile Range (IQR)

The difference between the third quartile ($Q_3$) and the first quartile ($Q_1$).

$1.5(\text{IQR})$ Rule

A rule used to identify outliers by determining if a value lies beyond $1.5 \times \text{IQR}$ above the third quartile ($Q_3$) or below the first quartile ($Q_1$).