Across
1
Reference line in a graph
3
Lines that never intersect
5
Rectangle with four equal sides
8
Part of a whole number
9
Value that does not change
11
Space between two intersecting lines
Down
2
Rectangular array of numbers
3
U-shaped curve of a quadratic function
4
Distance from center to edge of circle
6
Difference between highest and lowest values
7
Steepness of a line
10
Amount of space an object occupies