Algebra

3. A vertical line that divides a parabola into 2 congruent halves
5. A method of solving a system of equations by replacing a variable with an equivalent expression
8. A set of x-values for which a function or relation is defined.
9. b2 – 4ac
10. A trend line that shows the relationship between 2 sets of data most accurately
13. A relationship where the dependent y values decrease as independent x values increase
15. The highest or lowest point, sometimes called maximum or minimum of a parabola.
16. No relationship between the dependent y values and independent x values
19. the y-coordinate of a point where a line intersects the y-axis
20. A method of solving a system of equations by adding or subtracting equations to get rid one of the variables

1. ax+by=c
2. y – y1 = m(x – x1), where m is the slope and (x1,y1) is the point
4. Graphical representation of the relationship between two numerical sets of data
6. A set of y-values for which a function or relation is defined.
7. y=kx
11. One input to every output
12. the x-coordinate of a point where a line intersects the x-axis
14. The line that an exponential function NEVER crosses
17. y = a(x - h)2 + k, common point to join the two line segments.
18. An unknown number represented by a letter