3.5

2: Find the vertex.

9: See the first slide for descriptions and the second slide for how to find the vertex and x intercepts from intercept form.

30: Identify the x intercepts.

43: Start in vertex form using h ＝ 7 and k ＝ -3.

45: Start in intercept form using p ＝ 1 and q ＝ 9.

51: Start in vertex form using h ＝ -5.

52: The graph goes down until the axis of symmetry at x ＝ 4, and then turns back upward.

53: The minimum is k ＝ -3.

79: Use intercept form twice, with the same x intercepts but two different values of a.

82: See the last chapter 2 slide for the distance formula.