Across
1
U-shaped curve of a quadratic function
4
Divisible by two
6
System of ordered marks for measuring
7
Rectangle with four equal sides
8
Number greater than zero
9
Part of a line with two endpoints
11
Number less than zero
Down
2
Value that does not change
3
Line crossing from corner to corner
5
Three-sided polygon
8
Number divisible only by 1 and itself
10
Middle value in an ordered dataset