. With such a form of the equation of a parabola you can get all necessary values.

1.1 Turning point: V(-2, -3)

1.2 Axis of symmetry: x = -2. The parabola opens upward (3>0) and is stretched(?) by the factor 3.

1.3 x-intercepts:

1.4 y-intercepts:

1.5 domain: given:

1.6 Range: see coordinates of vertex.

, . Therefore

Therefore the range is r = (-3;45)