Direct variation is the relationship between two variables in which one is a constant multiple of the other. In other words, we can say when one variable changes the other changes in proportion to the first. If b is directly proportional to a, the equation is of the form b = ka (where k is a constant).

Direct Variation

EquARtions

Fraction bARs

Mean is defined as the average of a set of numbers that can be calculated by adding all the numbers and dividing the sum by the total number of terms. Median is defined as the middle value in a given set of numbers. To find the median, list all the numbers in increasing or decreasing order. The mode is the value that occurs most frequently in a given set of numbers. Range is the difference between the lowest and highest values in a given set of numbers.

Median, Mode, Mean & Range

A parallelogram can be defined as a special quadrilateral having opposite sides equal and parallel. A diagonal of a parallelogram divides it into two congruent triangles. The sum of all the interior angles of a parallelogram is 360 degrees.

Parallelograms

A percentage is defined as a portion of a whole expressed as a number between 0 and 100 instead of a fraction. The percentage is represented by % sign.

Percentage

Simple events are events in which one experiment happens at a time and there is a single outcome. The probability of a simple event is denoted by P(E), where E is the event.

Probability of Simple Events

Pythagorean-Theorem 

Scatter plot is a graph of plotted points that show the relationship between two sets of data. It is defined as a set of points plotted on a horizontal and vertical axis. The graph can depict the extent of correlation between the values of observed quantities or phenomena.

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Direct Variation

Equartions

Fraction Bars

Median, Mode, Mean & Range

Parallelograms

Percentage

Probability Of Simple Events

Pythagorean-Theorem

Scatter Plot