Across
1
U-shaped curve of a quadratic function
4
Round shape with all points equidistant
6
Value that does not change
7
Split into equal parts
8
Part of a line with two endpoints
10
Reference line in a graph
11
Symbol representing unknown value
12
Number with digits after a point
Down
1
Result of multiplication
2
Proven mathematical statement
3
Sum divided by count
5
The number representing nothing
9
Repeated addition