Across
1
Lines that never intersect
3
Single numeral from 0 to 9
5
Closed shape with straight sides
6
Amount of space an object occupies
7
Middle value in an ordered dataset
8
Difference between highest and lowest values
12
Divisible by two
Down
2
Number less than zero
4
Part of a line with two endpoints
9
Power to which a number is raised
10
Line segment connecting two circle points
11
Visual representation of data
13
Rectangular array of numbers
14
Reference line in a graph
15
U-shaped curve of a quadratic function