Answer:
0
Step-by-step explanation:
2nd avenue is a horizontal line, parallel to the x-axis.
The slope of a horizontal line is zero.
Answer: slope = 0

By the chain rule,

We have

and we're given that
changes at a constant rate of
thousand people per minute, which means

At the moment
thousand people are in the park, we have
, so we find

or approximately 2.324 thousand people per minute.
Can you put the graph up to make it simpler?