Across
1
Steepness of a line
4
Proven mathematical statement
5
Distance from center to edge of circle
7
Single numeral from 0 to 9
8
Result of raising a number to an exponent
9
Symbol representing unknown value
10
Line crossing from corner to corner
Down
1
Exact correspondence on both sides
2
The number representing nothing
3
U-shaped curve of a quadratic function
6
Part of a line with two endpoints