Chapter 9 - Quadratic Functions and Equations - 9-1 Quadratic Graphs and Their Properties - Practice and Problem-Solving Exercises - Page 551: 40

Vertex: $(0,5)$ Axis of Symmetry: $x=0$

$Y = -1.5x^{2} + 5$ Use $\frac{-b}{2a}$ to find the x coordinate $\frac{-0}{2*-1.5} = 0$ X coordinate = 0 Then plug the x coordinate in to find the y coordinate $Y = -1.5*0^{2} + 5 = 5$ Y coordinate = 5 Vertex = (0,5) Axis of Symmetry is equal to the x coordinate Axis of Symmetry is X = 0