1. How can you tell if the parabola opens upward or downward?
4. See the first slide.
10. Find h by dividing -24 by 2(-6), and then plug h in to find k.
12. Dividing by 2(-3/4) is multiplying by -8/6.
19. The error involves a negative.
21. The minimum or maximum value is the k value of the vertex.
31. Parabolas are symmetrical.
44. -b/2a is the x coordinate of the vertex.
52. How does the graph change when a value is subtracted from x or added to the expression?