Across
1
Number divisible only by 1 and itself
4
Sum divided by count
5
Number greater than zero
8
Corner point of a polygon
9
Number that divides evenly into another
Down
2
Steepness of a line
3
Part of a line with two endpoints
6
Result of raising a number to an exponent
7
U-shaped curve of a quadratic function
10
Parts per hundred
11
Comparison of two quantities
12
Power to which a number is raised
13
Number with digits after a point