Answer
a) $(-1,-4)$.
b) $x= -1$.
c) $(-4,-3)$.
Work Step by Step
All values are read directly from the graph.
a) The vertex is $(-1,-4)$.
b)The equation of the axis of symmetry is $x= -1$.
c) The point symmetric to the point $(2,-3)$ is $(-4,-3)$.