Answer:
Y-Intercept: -5
Axis of symmetry: -1
Vertex: (-1,-2)
Explanation:
Y- intercept is is always the number without a variable
Axis of symmetry is the x cordirant of the vertex
Vertex: You can turn the equation into vertex form
(photo example below) (IMPORTANT: once you turn your equation into vertex form, remember that the number inside the prencencys has to be turned to the opposite sign (-/+) when you put it as a coordinate)