Across
1
Rectangular array of numbers
4
Number less than zero
7
Mathematical statement of equality
8
Divisible by two
9
Comparison of two quantities
10
Number greater than zero
11
Steepness of a line
12
Mathematical rule or equation
Down
2
Part of a circle's circumference
3
U-shaped curve of a quadratic function
5
Line touching circle at one point
6
Corner point of a polygon