**2.**the set of all possible x-values which will make the function "work", and will output real y-values**3.**is the 'steepness' of the line, also commonly known as rise over run**5.**symbols-to indicate that the expressions contained within them are evaluated first.**12.**collection of facts, such as numbers**13.**mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.**14.**a set of data values is the value that appears most often.**15.**property-lets you multiply a sum by multiplying each addend separately and then add the products**18.**graph-can be defined as a chart or a graphical representation of data, quantities or numbers using bars or strips. ... The more the height of the bar, the more is the number of the supply or item used.**19.**quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression**21.**of operations-**24.**relationship or expression involving one or more variables.**25.**the variable x**27.**measure, quantity, or frequency, typically one measured against some other quantity or measure.

**1.**quantity or parameter that does not change its value whatever the value of the variables, under a given set of conditions.**4.**a numerical or constant quantity placed before and multiplying the variable in an algebraic expression**6.**number of times a certain number is to be multiplied by itself.**7.**that two values are not equal. a ≠ b says that a is not equal to b**8.**value-the magnitude of a real number without regard to its sign.**9.**graph- a graph in which points representing values of a variable for suitable values of an independent variable are connected by a broken line.**10.**a symbol for a number we don't know yet.**11.**numerical amount denoted by an algebraic term; a magnitude, quantity, or number.**16.**numbers-is a value of a continuous quantity that can represent a distance along a line.**17.**statement that the values of two mathematical expressions are equal**20.**the variable why**22.**difference between the lowest and highest values**23.**rate-describes how many units of the first type of quantity corresponds to one unit of the second type of quantity.**26.**number used as the basis of a numeration scale.