MATH VOCABULARY

Destinee Smith

Tech 1

Mrs. Bishop 1st Period

INTEGER one of the positive or negative numbers

1, 2, 3, etc., or zero. Compare whole number

RATIONAL NUMBERS a number that can be expressed exactly

by a ratio of two integers.

SCIENTIFIC NOTATION a method for expressing a given

quantity as a number having significant digits necessary for a specified degree of accuracy, multiplied by 10 to the appropriate power, as 1385.62 written as 1.386 × 10 3  .

PERFECT SQUARES a rational number that is equal to the

square of another rational number.

IRRATIONAL NUMBERS a number that cannot be exactly

expressed as a ratio of two integers.

REAL NUMBERS a rational number or the limit of a

sequence of rational numbers, as opposed to a complex number.

Also called real.

DENSITY PROPERTY Density is defined as the degree of

compactness of a substance.

ADJACENT ANGLES Adjacent angles is a geometric term.

Basically, adjacent angles have a common side and vertex.

COEFFICIENT Mathematics . a number or quantity

placed (generally) before and multiplying another quantity, as 3  in the expression 3x.

DISTANCE FORMULA The distance formula can be obtained by creating a

triangle and using the Pythagorean Theorem to find the length of the hypotenuse. The hypotenuse of the triangle will be the distance between the two points.

The subscripts refer to the first and second points; it doesn't matter which points you call first or second.

x2 and y2 are the x,y coordinates for one pointx1and y1 are the x,y coordinates for the second pointd is the distance between the two points

DOMAIN a field of action, thought, influence, etc.: the domain of science. 2. the territory governed by a single ruler or government; realm. 3. a realm or range of personal knowledge, responsibility, etc. 4. a region characterized by a specific feature, type of growth or

wildlife, etc.: We entered the domain of the pine trees. 5. Law. land to which there is superior title and absolute

ownership.

HYPOTENUSE the side of a right triangle opposite the

right angle

LEGS OF A RIGHT TRIANGLE Either of the sides in a right triangle

opposite an acute angle. The legs are the two shorter sides of the triangle.

RANGE In the problem above, the set of data consists of 7 test scores. We ordered

the data from least to greatest before finding the range. We recommend that you do this, too. This is especially important with large sets of data. Let's look at Example 1:   The Jaeger family drove through 6 Midwestern states on their summer vacation. Gasoline prices varied from state to state. What is the range of gasoline prices?  $1.79,  $1.61,  $1.96,  $2.09,  $1.84,  $1.75 Solution:   Ordering the data from least to greatest, we get:  $1.61,  $1.75,  $1.79,  $1.84,  $1.96,  $2.09   highest - lowest = $2.09 - $1.61 = $0.48 Answer:   The range of gasoline prices is $0.48. some more examples.

SLOPE How steep a straight line is.

In this example the slope is 3/5 = 0.6

PRISM A solid object that has two identical ends and all flat sides.

The cross section is the same all along its length.

The shape of the ends give the prism a name, such as "triangular prism"

It is also a polyhedron

SCATTER PLOT A graph of plotted points that show the relationship

between two sets of data.

In this example, each dot represents one person's weight versus their height.

SLOPE INTERCEPT FORM the equation of a straight line in the

form y = mx + b where m is the slope of the line and b is its y-intercept