Across
1
System of ordered marks for measuring
5
Visual representation of data
6
Lines that never intersect
8
Space between two intersecting lines
9
Mathematical statement of equality
10
Number greater than zero
Down
2
U-shaped curve of a quadratic function
3
Reference line in a graph
4
Steepness of a line
7
Part of a whole number
11
Part of a line with two endpoints