Across
1
Reference line in a graph
4
Exact correspondence on both sides
5
Mathematical statement of equality
9
Visual representation of data
10
Difference between highest and lowest values
Down
2
Middle value in an ordered dataset
3
Single numeral from 0 to 9
4
Steepness of a line
6
Corner point of a polygon
7
Proven mathematical statement
8
Mathematical rule or equation