Functions can be used to model real life situations.
The hose is 3.2 feet above the ground, at a horizontal distance of 4 fee
The function is given as:

At a horizontal distance of 4 feet, the value of x is 4
i.e. 
Substitute 4 for x in f(x).
So, we have:

Evaluate the exponent

Open both brackets

Add -4.8 and 8

Hence, the hose is 3.2 feet above the ground
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Answer:
C) To the right.
Step-by-step explanation:
Answer:
I think it is A
Step-by-step explanation:
Answer: erm... the vertex it (1,-9)
Step-by-step explanation:
i think i did it right....not good at this stuff