Amelie

2. a decimal number where a digit or a sequence of digits repeats infinitely after a certain point
3. something that can be represented by a straight line or a function whose graph is a straight line
7. a statement that compares two values or expressions and indicates that they are not equal, meaning one is greater than or less than the other
10. a decimal number that ends after a finite number of digits after the decimal point
12. a symbol, usually a letter, that represents a quantity that can change or vary within a given context
13. a statement of equality between two expressions
14. an equation or system of equations has no values for the variables that will make the equation or system true
15. a function, equation, or system does not follow a straight-line relationship between its input and output variables.

1. the secondary or vertical axis of a system of coordinates, points along which have a value of zero for all other coordinates.
4. numbers can be expressed as a fraction
5. a real number that cannot be expressed as a ratio of two integers
6. the horizontal axis in a two-dimensional coordinate system
8. a part of a whole, has a numerator and denominator
9. a system of equations where there is exactly one set of values for the variables that satisfies all the equations simultaneously
11. a mathematical phrase that combines numbers, variables, and operators