**2.**events An event made up two or more simple events 9**9.**imaginary number See imaginary number 36**10.**Factor The base 1 - r in an exponential expression 11**12.**The distance around a circle 8**14.**system of equations A system in which at least one of the equations is not linear 29**16.**The point that divides a segment into two congruent segments 26**18.**number A counting number 28**19.**A measure of the steepness of surfaces, expressed as percent 18**21.**A comparison of two quantities by division 40**22.**The discriminant of the quadratic equation ax^2+bx+c=0 is b^2-4ac 12**23.**A survey of an entire population 7**24.**The expression under a radical sign 39**28.**An indicated root of a quantity 38**29.**of variation A measure that describe the spread of a data set 25**30.**A member of the set of whole numbers and their opposites 20**33.**angle An angle that measure greater than 0 and less then 90 3**34.**square A number whose positive square root is whole number 31

**1.**The sum of all the values in a data set divided by that describes the center of a data set24**3.**A monomial or a sum or difference of monomials 33**4.**A compound statement that uses the word or 13**5.**A possible result of a probability experiment 30**6.**An equation that has no solutions 10**7.**model A quadratic function used to represent a set of data 37**8.**A polynomial with two terms 5**10.**The set of all possible input values of a relation or function 14**11.**-Value Function A function whose rule contains absolute- value expressions 1**13.**A statement that two ratios are equal a/b=c/d 35**15.**Each value in a matrix also called an element 17**17.**of a hyperbola One of the two symmetrical parts of the hyperbola 6**20.**set- A set with an unlimited, or infinite number of element 22**25.**The closeness of a given measurement 2**26.**sample A sample that does not fairly represent the population 4**27.**of a set- An item in a set 15**31.**factor- The base 1+r in an exponential expression 19**32.**A rectangular array of numbers 23**34.**shift A horizontal translation of a periodic function 32**35.**set- A set with no elements 16