横向
1
Lines that never intersect
5
Comparison of two quantities
6
Number that divides evenly into another
7
Distance from center to edge of circle
8
Closed shape with straight sides
9
Power to which a number is raised
10
Line crossing from corner to corner
纵向
1
Number greater than zero
2
Reference line in a graph
3
U-shaped curve of a quadratic function
4
Difference between highest and lowest values
11
Line touching circle at one point
12
Steepness of a line