Vocab #1

3. a graph of a set of data pairs (x, y) used to determine whether there is a relationship between the variables x and y
4. a measure, denoted by r, of how well a function fits a set of data pairs (x,y)
6. number that produces a specified quantity when multiplied by itself
7. two lines in the same plane that intersect to form a right angle because they have opposite reciprocal slopes
9. the number that describes a square matrix
12. type of equation whose graph is a parabola
13. shape of the graph of a quadratic equation
15. a rectangular arrangement of numbers, called elements, in rows and columns

1. the expression under the radical sign in the quadratic formula
2. one of two or more integers that can be exactly divided into another integer
5. square root of -1
8. the ratio of vertical change to horizontal change; rise over run; slope
10. an expression that is either a number, a variable, or the product of a number and one or more variables
11. the process of finding the factors of a polynomial
14. the sum of two monomials