Across
1
Divisible by two
4
Line touching circle at one point
5
Part of a line with two endpoints
7
Closed shape with straight sides
8
Number greater than zero
10
Reference line in a graph
11
Part of a circle's circumference
12
Mathematical rule or equation
13
Comparison of two quantities
Down
2
The number representing nothing
3
Number less than zero
6
Steepness of a line
9
Value that does not change
14
Math using letters for unknown values