Across
1
Amount of space an object occupies
4
Difference between highest and lowest values
6
Reference line in a graph
7
Steepness of a line
9
Collection of distinct elements
10
Number with digits after a point
Down
1
Corner point of a polygon
2
Round shape with all points equidistant
3
Mathematical rule or equation
5
Mathematical statement of equality
8
U-shaped curve of a quadratic function
11
Symbol representing unknown value