Across
1
Power to which a number is raised
5
Single numeral from 0 to 9
6
Part of a circle's circumference
7
U-shaped curve of a quadratic function
8
Three-sided polygon
9
Collection of distinct elements
10
Difference between highest and lowest values
Down
2
Value that does not change
3
Number that divides evenly into another
4
Proven mathematical statement
7
Number greater than zero
11
Lines that never intersect