Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
26 Cards in this Set
 Front
 Back
 3rd side (hint)
additive inverse

Two numbers with a sum of zero.

Example:
23 and 23 are additive inverses because 23 + 23 = 0. 

alternate exterior angles

Nonadjacent exterior angles found on opposite of the transversal.

Example:
/ 1 & / 7, and / 2 & / 8 in diagram. 

alternate interior angles

Nonadjacent interior angles found on opposite sides of the tranversal.

Example:
/ 4 & / 6, and / 3 & / 5 in diagram. 

arithmetic sequence

A sequence of numbers in which each term after the first is the result of adding a fixed number (called the common difference) to the previous term.

Example:
The sequence 4, 10, 16, 22, 28, 34,... is an arithmentic sequence. The common difference is 6. 

complementary angles

Two angles whose measures add to equal 90 .

Example:
/ BCA and / CAB are complementary angles in the diagram. 

corresponding angles

Pairs of nonadjacent angles that lie on the same side of a transversal of two lines and in corresponding positions.

Example:
/ 1 & / 3 are coresponding angles and so are / 2 & / 4 in the diagram. 

exponent

A number that shows how many times a base number is used as a factor.

Example:
In 3 , the 4 is the exponent, therefore 3 = 3 x 3 x 3 x 3 

function

A relationship in which each member of the domain is paired with exactly one member of the range. A number of a domain is an input and the related number of the range is an output.

Example:


hypotenuse

The side opposite the right angle in a right triangle.

Example:


inequality

Mathematical sentence that contains or uses one of the symbols <, >, , , or =.

Example:
k < 3 

irrational number

A number that can be represented by a nonrepeating, nonterminating decimal.

Example:


legs

The two shorter sides of a right triangle. Either of the two sides that form the right angle of a right triangle.

Diagram:


like terms

Expressions that contain the same variables.

Example:
3b + 12b = (3 + 12)b = 15b 

linear equation

Any equation whose graph is a straight line.

Example:
y = 1/2x + 3 is linear because its graph is a line. 

multiplicative inverse

The reciprocal of a number.

Example:
9/4 is the multiplicative inverse of 4/9. 

Pythagorean Theorem

In any right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs.
a + b = c 
a + b = c
Example: The right triangle shown has leg lengths 3 and 4 and hypotenuse length 5: 3 + 4 = 5 9 + 16 = 25 

radical sign

The symbol used to indicate a nonnegative square root.



rational number

Any number you can write as a quotient of two integers a/b, where b is not zero.

Examples:
3/5, 8, 8.7, 0.333..., 0, 17/4, 5 3/11. 

relation

A set of ordered pairs.

Example:
{(0,2), (3,2), (0,1)} 

Scientific notation

A way of reexpressing a number so that it is written as the product of a number greater than or equal to 1 and less than 10, and a power of 10.

Example:
37,000 written as 3.7 x 10 

sequence

A set of numbers that follow a pattern.

Examples:
2, 2.3, 2.34, 2.345,... 3, 6, 9, 12, 15,... 

significant digits

Digits that represent an actual measurement.



slope

A ratio that represents the tilt of a line (the change in y to the corresponding change in x).

Example & Diagram:
The slope of the given line is 2/4 or 1/2. 

square root

A number that when multiplied by itself equals the given number.
One of the two equal factors of a number. 
Example:
25 = 5 because 5 = 25 

supplementary angles

Two angles whose sum of their measures is 180 .

Example & Diagram:
A & D 

system of linear equations

Two or more linear equations.

Example:
y = 3x + 1 and y = 2x  3 