Across
1
Number less than zero
2
Collection of distinct elements
5
Closed shape with straight sides
6
Rectangular array of numbers
9
Mathematical statement of equality
10
Number that divides evenly into another
12
Visual representation of data
Down
2
Steepness of a line
3
Corner point of a polygon
4
Result of raising a number to an exponent
7
Line segment connecting two circle points
8
Math using letters for unknown values
11
Symbol representing unknown value