ashontae19
  • ashontae19
I need help on a math worksheet on graphs i will give medals. Anyone down?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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ashontae19
  • ashontae19
@Michele_Laino
Michele_Laino
  • Michele_Laino
please, where is your mathematical graph?
ashontae19
  • ashontae19
@Michele_Laino

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ashontae19
  • ashontae19
@iwanttogotostanford
ashontae19
  • ashontae19
@geny55
ashontae19
  • ashontae19
can anyone help me?
Michele_Laino
  • Michele_Laino
the requested climb is missing
Michele_Laino
  • Michele_Laino
you have to draw an initial climb, a loop and at least two hills
ashontae19
  • ashontae19
I did that on my graph as you can see i need to correct it
Michele_Laino
  • Michele_Laino
I'm thinking to a graph like this: |dw:1443635422403:dw|
ashontae19
  • ashontae19
so plot the coordinates where?
Michele_Laino
  • Michele_Laino
here are the requested coordinates: |dw:1443635532120:dw|
Michele_Laino
  • Michele_Laino
furthermore: |dw:1443635766113:dw|
ashontae19
  • ashontae19
ok hold on im going to take a picture if it is correct
Michele_Laino
  • Michele_Laino
ok!
ashontae19
  • ashontae19
can you see it?
Michele_Laino
  • Michele_Laino
yes! nevertheless is not a good graph, please, redo your graph using my suggestions |dw:1443636162091:dw|
ashontae19
  • ashontae19
ok can you see where i need to draw the coordinates? @Michele_Laino
Michele_Laino
  • Michele_Laino
I think that you have to specify the coordinates at the second end of the initial climb, like in my drawing
Michele_Laino
  • Michele_Laino
|dw:1443636688896:dw|
ashontae19
  • ashontae19
ok im drawing it now
Michele_Laino
  • Michele_Laino
ok! it is useful to write the requested answers
Michele_Laino
  • Michele_Laino
now, you have to specify the coordinates of the subsequent points: |dw:1443637076815:dw| namely, you have to specify the coordinates for each point at the top of the two hills
Michele_Laino
  • Michele_Laino
please, complete this table: second end---> x=...? y=...? point at the top of the first hill---> x=....? y=...? point at the top at the second hill---> x=...? y=...?
ashontae19
  • ashontae19
like you want me to plot the points the chart you typed?
Michele_Laino
  • Michele_Laino
no, you have to draw, on your graph the points like in my drawing. then you have to write their coordinates, referring to your drawing
ashontae19
  • ashontae19
the second end is 4,5 correct?
Michele_Laino
  • Michele_Laino
I see (5,5)
ashontae19
  • ashontae19
correct. to find the slope i would do y2-y1/x2-x1 with what points?
Michele_Laino
  • Michele_Laino
yes!
ashontae19
  • ashontae19
with 5,5 and what other point?
Michele_Laino
  • Michele_Laino
it is the origin of the cartesian system, namely (0,0)
ashontae19
  • ashontae19
the slope would be 1 correct?
Michele_Laino
  • Michele_Laino
correct!
Michele_Laino
  • Michele_Laino
please wait, I have to answer to the phone
ashontae19
  • ashontae19
ok. when you get back just to ask is the equation y=x?
Michele_Laino
  • Michele_Laino
yes! correct!
Michele_Laino
  • Michele_Laino
now, you would write the coordinates of the subsequent four points: |dw:1443638327046:dw| namely the points at the top and at the bottom of each hill
ashontae19
  • ashontae19
ok so what would be the domain and range?
ashontae19
  • ashontae19
ok i did that @Michele_Laino
Michele_Laino
  • Michele_Laino
looking at your drawing I see that your roller coaster starts at the point (0,0) and continues to the point (16,1)
Michele_Laino
  • Michele_Laino
so the domain is the segment: \([0,16]\)
Michele_Laino
  • Michele_Laino
whereas the range is the segment \([0,5]\) approximately
ashontae19
  • ashontae19
ok what bout the rate of change?
Michele_Laino
  • Michele_Laino
the range is given by all possible values assumed by your function
ashontae19
  • ashontae19
for the rate of change?
Michele_Laino
  • Michele_Laino
in order to specify the rate of change we need of the subsequent ordered pair: |dw:1443639445403:dw|
ashontae19
  • ashontae19
pl= 10,2?
ashontae19
  • ashontae19
so was i corrected?
Michele_Laino
  • Michele_Laino
better is (10, 5/2)
ashontae19
  • ashontae19
i thought so . for pl= 10, 5/2 and for p2 is 12 ,2
Michele_Laino
  • Michele_Laino
better is (11.5, 1.5)=(23/2, 3/2)
ashontae19
  • ashontae19
thats for p1 and p2?
Michele_Laino
  • Michele_Laino
yes! now you have to do this computation: \[\huge r = \frac{{\frac{5}{2} - \frac{3}{2}}}{{10 - \frac{{23}}{2}}} = ...?\]
ashontae19
  • ashontae19
-183/20?
Michele_Laino
  • Michele_Laino
hint: \[\Large r = \frac{{\frac{5}{2} - \frac{3}{2}}}{{10 - \frac{{23}}{2}}} = \frac{1}{{\frac{{20 - 23}}{2}}} = \frac{2}{{20 - 23}} = ...?\]
Michele_Laino
  • Michele_Laino
furthermore you have to do a similar computation for the second hill
Michele_Laino
  • Michele_Laino
for question #7, here is my hint: |dw:1443642062352:dw| as you can see at the x-ccordinate x0 corresponds two distinct y-coordinate, namely y1 and y2. What can you conclude?
Michele_Laino
  • Michele_Laino
coordinate*
ashontae19
  • ashontae19
hi my internet working now @Michele_Laino
ashontae19
  • ashontae19
@Michele_Laino when ever you get online can you help me?
Michele_Laino
  • Michele_Laino
the first rate of change is: \[\Large r = \frac{{\frac{5}{2} - \frac{3}{2}}}{{10 - \frac{{23}}{2}}} = \frac{{\frac{2}{2}}}{{\frac{{20 - 23}}{2}}} = \frac{1}{{\frac{{ - 3}}{2}}} = 1 \cdot \left( { - \frac{2}{3}} \right) = ...?\]
Michele_Laino
  • Michele_Laino
please simplify
Michele_Laino
  • Michele_Laino
@ashontae19
ashontae19
  • ashontae19
-2/3?
Michele_Laino
  • Michele_Laino
yes! and for our computation we can take the absolute value, so the first rate of change is r=2/3
Michele_Laino
  • Michele_Laino
now we have to specify the points at the top and at the bottom of the second hill
ashontae19
  • ashontae19
so thats for the rate of change?
Michele_Laino
  • Michele_Laino
yes! it is the first rate of change, now we have to compute the rate of chage for second hill
ashontae19
  • ashontae19
yes
Michele_Laino
  • Michele_Laino
you have to write the coordinates of these points please: |dw:1443715743609:dw| referring your drawing
ashontae19
  • ashontae19
ok im going to send the picture to you
Michele_Laino
  • Michele_Laino
ok!
Michele_Laino
  • Michele_Laino
from your drawing we can see that the requested points are: (15,3) top of the hill (16,1) bottom of the hill
ashontae19
  • ashontae19
correct

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