Unit 4A

2. where the graph crosses the x-axis
5. Number of solutions of a quadratic when the vertex sits on the x-axis
7. a u-shaped graph
10. turning point of a parabola or quadratic
11. Notation used to express domain and range using braces
13. all possible x-values
14. When the x-value is squared, the parabola will open ____ __ _____.
15. the lowest point on a graph
16. the distance between the vertex and the directrix
17. all possible y-values
20. where the graph crosses the y-axis
22. a fixed point that lies inside the parabola
24. y=ax^2+bx+c
25. the line that divides a graph in half creating mirror images on either side

1. the equation of a straight line
3. Notation used to express domain and range using only inequality symbols
4. type of equation of the second degree, meaning it contains at least one term that is squared
6. The ____ _______ ________ states that if a product of factors is zero, then at least one of those factors must be zero
8. y=a(x-h)^2+k
9. the number in front of a variable
12. Notation used to express domain and range using parentheses and brackets
18. When the y-value is squared, the parabola will open ____ __ ____.
19. a fixed straight line that lies outside the parabola
21. are x-intercepts on a graph
23. the highest point on a graph