Linear Algebra

2. region of the Cartesian plane formed when the x-axis and y-axis intersect)
5. (the difference between a true value and an estimate, or approximation, of that value)
9. (different terms and expressions with a similar value are considered equal in mathematical form)
11. (a concept that describes something greater than a natural number)
12. system (a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points)
13. (If a matrix is in row-echelon form, then the first nonzero entry of each row is called a)

1. (Arectangular array of numbers, characters, or expressions arranged in rows and column)
3. (the set of all n-dimensional column vectors x such that Ax = 0.)
4. (On a two-dimensional graph, it is the intersection of the X-axis and the Y-axis, sometimes written as the letter O)
5. (The term that refers to the stair-step pattern formed by the nonzero elements of the matrix)
6. (a point at or near the middle of, or equidistant from, both ends, as of a line:)
7. (procedure, a description of a set of steps that can be used to solve a mathematical computation)
8. (a matrix with the same number of rows and columns)
10. (the property of an object to be able to be divided into two identical mirror halves)