Across
1
Power to which a number is raised
4
Round shape with all points equidistant
5
Comparison of two quantities
8
Math using letters for unknown values
12
The number representing nothing
13
Number with digits after a point
14
Repeated addition
Down
2
Result of raising a number to an exponent
3
Difference between highest and lowest values
6
Reference line in a graph
7
U-shaped curve of a quadratic function
9
Steepness of a line
10
Part of a line with two endpoints
11
Part of a circle's circumference