Math Vocab

2. a circle of unit radius, i.e., of radius 1
4. a fraction in which the denominator and numerator or both contain fractions
5. a two-branched open curve.
6. mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other
7. an ordered list of numbers
12. a line that continually approaches a given curve but does not meet it at any finite distance
14. the inverse of a value or a number
15. inequalities in which one (or both) sides involve a variable exponent
16. a statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.

1. the trigonometric function that for an acute angle is the ratio between the leg opposite the angle when it is considered part of a right triangle and the hypotenuse
3. a stationary straight line that contains a point about which another straight line is rotated to form an angle
8. the trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse
9. a relationship or expression involving one or more variables
10. the inverse function to exponentiation
11. unit of angle, equal to an angle at the center of a circle whose arc is equal in length to the radius
13. a line touching circles or an ellipse at only one point