Across
1
Reference line in a graph
4
Line crossing from corner to corner
5
Power to which a number is raised
8
Single numeral from 0 to 9
9
Number that divides evenly into another
11
Number with digits after a point
13
System of ordered marks for measuring
14
Divisible by two
Down
2
Part of a line with two endpoints
3
Comparison of two quantities
6
Steepness of a line
7
Three-sided polygon
10
Space between two intersecting lines
12
Total distance around a shape