Across
1
Part of a line with two endpoints
3
Exact correspondence on both sides
5
Rectangle with four equal sides
7
Result of multiplication
9
U-shaped curve of a quadratic function
10
Three-sided polygon
Down
2
Reference line in a graph
3
Steepness of a line
4
Comparison of two quantities
6
Symbol representing unknown value
7
Parts per hundred
8
Visual representation of data
11
Line touching circle at one point