Y=-1/20(x+3)^2
Your could always tell by which way the curve is pointing and if pointing down it’s a negative it’s pointing up it’s a positive
Hope that helped
Answer:

Step-by-step explanation:

Answer:
144
Step-by-step explanation:
5(9)=45
v=bh
v=(45)(3.2)
v=144
Answer:
x=20
Step-by-step explanation: