Across
1
Value that does not change
3
U-shaped curve of a quadratic function
4
Divisible by two
6
Corner point of a polygon
8
Power to which a number is raised
10
Number divisible only by 1 and itself
11
The number representing nothing
Down
1
Line segment connecting two circle points
2
Number greater than zero
3
Parts per hundred
5
Repeated addition
7
Comparison of two quantities
9
Lines that never intersect
12
Visual representation of data