Answer:
It is a function
Step-by-step explanation:
This isn't really a step by step explanation but I'm going to explain this simply. An output can have as many inputs possible but an input can only have ONE OUTPUT(just putting emphasis on this one output, I'm not yelling). Example, the input "2" can be equal to the output of "4" depending on the equation the fuction, however, the input of "2" CAN NOT be equal to the outputs of "4" and "6" because as my Algebra teacher explained it "for every input, there is exactly one output". I hope this helps and I hope I didn't lose you in my explaination.
Answer:
a. 400
b. 4$
Step-by-step explanation:
2$ equals 0 Quantity
3$ equals 100 Quantity
4$ equals 200 Quantity
We can see that starting from 2$, a dollar will increase the Quantity by 100
Answer:
C. -(5/-4)
Step-by-step explanation:

The maximum height and horizontal distance is required.
Maximum height 8 feet; horizontal distance 16 feet
The given path is 
If the skateboarder jumps at x = 0 she will land at y = 0. However there will be at horizontal displacement.

or

The distance between -5 and 11 is 
Middle point would be
from
.

So, 
The maximum height will be

The maximum height is 8 feet and the horizontal distance is 16 feet.
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