Across
1
Value that does not change
5
Proven mathematical statement
6
Steepness of a line
8
Number with digits after a point
9
Result of addition
11
Power to which a number is raised
12
Mathematical statement of equality
Down
2
U-shaped curve of a quadratic function
3
Corner point of a polygon
4
Number greater than zero
7
Distance from center to edge of circle
10
Reference line in a graph
13
Split into equal parts