Chapter 4 - Quadratic Functions - 4.2 Graphing Quadratics in Vertex Form - 4.2 Exercises - Page 316: 11

a) $(-2.5,-3)$. b) $x= -2.5$. c) $(-5.5,4)$.

All values are read directly from the graph. a) The vertex is $(-2.5,-3)$. b) The equation of the axis of symmetry is $x= -2.5$. c) The point symmetric to the point $(0.5,4)$ is $(-5.5,4)$.