# Mat 1475

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• #42049

Diego Guaman
Participant

Group Leader: Diego Guaman
Zahidah West
Jorge Reyes
Stephen Dronov
Alex Flores
Tobi Losotu
Ivan Baltazar
Andy Cuevas
Nyasia Walter
Brian Dawson
Question #1 : Feel Free to write comments or concerns about this question

#42050

Diego Guaman
Participant

1)
a) The graph shows that as more miles are hiked, the elevation increases until it begins to drop once a certain number of miles have been hiked. AT every point in the domain of e(x), if e(x) is decreasing than e'(x) is decreasing.
b) At the highest point, the elevation stops ascending and then starts to descend (Increasing to decreasing)
c) f'(x) = 250x-18.75x^2
d) 0 = 250x-18.75x^2
0 = (250 – 18.75x) x
250 = 18.75x
x = 250/18.75
x = 13.333
e) 125(13.333)^2 – 6.25(13.333)^3 = 7407 feet

#42080

Brian Dawson
Participant

I agree with the answer , which mathematic property/rule did you use to change 125x^2-6.25x^3 to 250x-18.75x^2?

#42092

Zahidah West
Participant

I agree with the solution of this problem.

#42093

Takinlosotu
Participant

The solution is agreeable based on the work showed.

#42260

Diego Guaman
Participant

Guys, so far the only work I’m missing is Jorge’s and Nyasia, if you haven’t been receiving my messages and you’ve done the work, send the work to me at avhs9189@gmail.com
Jorge- 1A
Nyasia- 1D

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