Across
1
Closed shape with straight sides
4
Collection of distinct elements
5
Rectangular array of numbers
7
The number representing nothing
8
Visual representation of data
9
Corner point of a polygon
10
Distance from center to edge of circle
11
Steepness of a line
Down
2
Power to which a number is raised
3
U-shaped curve of a quadratic function
6
Value that does not change