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# Algebra Glossary - M a|b|c|d|e|f|g|h|i|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z

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# main diagonal of a square matrix:

The diagonal from the upper left to the lower right.

# major axis:

The longer axis of an ellipse.

# mapping:

An association from the elements of the domain to the elements of the range.

# matrix matrices:

A rectangular array of numbers arranged in Tows and columns.

# maximum value:

The Y-coordinate of the vertex of the graph of a quadratic function that opens downward.

# mean:

The sum of a set of numbers divided by the number of numbers in the set.

# mean absolute deviation:

The average absolute deviation from the mean for a set of numbers.

# mean proportional:

The geometric mean between two numbers.

# median:

The middle number in a set of numbers arranged in order.

# midpoint:

The point on a segment that is equidistant from the endpoints.

# midpoint formula:

If the coordinates of point A are (x1,y1) and the coordinates of point B are (x2,y2), then the coordinates of the midpoint of segment AB are {(x1+x2)/2, (y1+y2)/2}

# minimum value:

The y-coordinate of the vertex of the graph of a quadratic function that opens upward.

# minor of an element:

The determinant that remains after the row and column containing the element have been deleted.

# minor axis:

The shorter axis of an ellipse.

# mode:

The number that occurs most often in a set of numbers.

# monomial:

A constant (a number), a variable, or a product of constants and/or variables.

# multiplicative inverse (or reciprocals):

Pairs of real numbers that have the product 1.

# multiplicative identity matrix:

A square matrix with I's on the main diagonal (upper lcft to lower right) and other entries 0.

# mutually exclusive events:

Two events A and B are mutually exclusive if and only if they have no outcomes in common.

Note: The terms in this collection may not be entirely accurate.
They are for reference only.