Across
1
Rectangle with four equal sides
2
U-shaped curve of a quadratic function
4
Comparison of two quantities
5
Part of a line with two endpoints
10
Parts per hundred
Down
1
Exact correspondence on both sides
2
Result of raising a number to an exponent
3
Power to which a number is raised
6
Reference line in a graph
7
Symbol representing unknown value
8
Sum divided by count
9
Longest side of a right triangle
11
Number less than zero