Algebra crossword

4. -b/2a
6. An algebraic statement consisting of 3 terms
8. This set is the x values in a function such as f(x).
9. An algebraic statement consisting of more than 2 terms
11. A plane curve which can be found on a graph
13. when a number is multiplied by itself multiple times
17. a quantity that doesn't change
18. The coefficient of the first term of a polynomial written in descending order of exponents
19. b/2a
20. the difference between a number and 0

1. when a line intercepts the x
2. when a shape is reflected over a x or y axis
3. a line that goes up and down
5. side by side but never touching
7. a line that goes side to side
10. when a exponent is negative
12. a number in a set that is way to high or low
14. the process of creating a different number with the same outcome, smaller or simpler.
15. a^2+b^2=c^2
16. (-b+-sqrt(b^2-4(a)(c)))/2a
21. a measure of a line's steepness