Across
1
Divisible by two
2
U-shaped curve of a quadratic function
6
Repeated addition
8
Proven mathematical statement
9
Three-sided polygon
10
Power to which a number is raised
11
Mathematical statement of equality
12
Number less than zero
Down
2
Number divisible only by 1 and itself
3
Total distance around a shape
4
Sum divided by count
5
Steepness of a line
7
Visual representation of data