Across
1
Visual representation of data
3
Round shape with all points equidistant
4
Part of a line with two endpoints
6
U-shaped curve of a quadratic function
7
Part of a circle's circumference
9
Closed shape with straight sides
11
Reference line in a graph
Down
2
Math using letters for unknown values
4
System of ordered marks for measuring
5
Longest side of a right triangle
8
Parts per hundred
10
Mathematical rule or equation
12
Three-sided polygon
13
Collection of distinct elements