Across
1
Math using letters for unknown values
5
Collection of distinct elements
6
Space between two intersecting lines
7
Total distance around a shape
8
Part of a line with two endpoints
Down
2
Mathematical statement of equality
3
Reference line in a graph
4
Line crossing from corner to corner
5
Result of addition
7
U-shaped curve of a quadratic function
9
Number less than zero
10
Visual representation of data
11
Number divisible only by 1 and itself