Across
1
Steepness of a line
3
Comparison of two quantities
5
Result of raising a number to an exponent
6
Corner point of a polygon
7
Parts per hundred
11
Split into equal parts
12
Reference line in a graph
Down
2
Power to which a number is raised
4
Symbol representing unknown value
8
Amount of space an object occupies
9
System of ordered marks for measuring
10
Part of a circle's circumference
13
Collection of distinct elements