Across
1
U-shaped curve of a quadratic function
3
Collection of distinct elements
6
Result of addition
7
Number with digits after a point
8
Comparison of two quantities
9
The number representing nothing
11
Visual representation of data
Down
1
Number greater than zero
2
Rectangular array of numbers
4
Line crossing from corner to corner
5
Number less than zero
10
Parts per hundred
12
Closed shape with straight sides