Answer:
-48
Step-by-step explanation:
The equation of a parabola is:

If a>0, then the parabola opens up;
If a<0, then the parabola opens down.
The coordinates of focus are:
Answer: theres not a picture soo idk
Step-by-step explanation:
Answer:
7×3
Step-by-step explanation:
option b
i hope it is helpful for you