Across
1
Single numeral from 0 to 9
4
Reference line in a graph
5
Corner point of a polygon
7
Part of a circle's circumference
8
Rectangular array of numbers
Down
2
Visual representation of data
3
Line touching circle at one point
6
Value that does not change
9
Line crossing from corner to corner
10
Result of multiplication
11
Divisible by two
12
Power to which a number is raised