Across
1
Comparison of two quantities
4
Lines that never intersect
10
System of ordered marks for measuring
11
Amount of space an object occupies
Down
2
Steepness of a line
3
Reference line in a graph
5
Difference between highest and lowest values
6
Space between two intersecting lines
7
Number less than zero
8
Single numeral from 0 to 9
9
Result of raising a number to an exponent