Respuesta :

1. Downward

2. (-4, -3)

3. No x-intercept, y-intercept is at (0, -7)

4. x = -4

Answer:

a.  It opens downwards.

b. The vertex is (-4, -3).

c. x -intercepts: None.

   y-intercept at (0, -7).

d. x = -4.

Step-by-step explanation:

There are no x -intercepts and the y-intercept is at (0, -7).

The axis of symmetry has the equation of the vertical  line passing through the vertex. That is x = -4.