Across
1
Reference line in a graph
3
Number divisible only by 1 and itself
6
Line touching circle at one point
8
Steepness of a line
9
Rectangle with four equal sides
10
Distance from center to edge of circle
Down
2
Single numeral from 0 to 9
3
Result of multiplication
4
Divisible by two
5
U-shaped curve of a quadratic function
7
Collection of distinct elements