X=-2
You can also check by plugging -2 in for x. Here is a picture. Please notify me if I made an error!
D because d is always right hahahahaha
4,100 meters. Hope it helped
Its A i had the same one. Hope it helps.
Answer:
a) 17.5
b) 15.6
c) 13.3
d) 21.51
Step-by-step explanation:
The given function is equal to:
f(x)=kx^2
where

where y=23
Clearing k=0.00025
a) 
b)
c) The function is equal to:
f(x)=k(1+2x)

where y=20
k=0.0024

d) 