Answer:
Yes, it is a function
Step-by-step explanation:
Each x value in the domain has its own output, and it does not have more than 1
Answer:
slope = 
Step-by-step explanation:
The slope of a line can be found by identifying two points and the graph and finding the overall change in y over the change in x:

Using the points on the given graph of (-3, 2) and (1, -2):

So, slope = 
It will take Lauren 1.25 seconds to hit the water.
With the given information, we can write the following quadratic equation.

Now, just use the quadratic formula to solve the equation.
You will get 1.25 and -0.75 as the zeros of the equation (where Laruen hits the water).
Only 1.25 makes sense in the context of this problem.
20 h
Step-by-step explanation:
300,000 divided by 15,000 = 20 h