calculusxy
  • calculusxy
MEDAL for help!!!! Question is posted below:
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
calculusxy
  • calculusxy
Write a set of walking instructions based on the data in Tables A and B.
calculusxy
  • calculusxy
@Michele_Laino
calculusxy
  • calculusxy
What do they mean by "walking instructions''?

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Michele_Laino
  • Michele_Laino
maybe the function distance as function of time for both tables A and B
Michele_Laino
  • Michele_Laino
I'm not sure
Michele_Laino
  • Michele_Laino
do you know the least square method, for statistical processing of data?
calculusxy
  • calculusxy
No
calculusxy
  • calculusxy
But I can learn !
Michele_Laino
  • Michele_Laino
what subject are you studying at your school?
calculusxy
  • calculusxy
Well i am a rising eight grader...
calculusxy
  • calculusxy
And it's just math, latin, english, history, and physics.
Michele_Laino
  • Michele_Laino
please wait, I'm working on your answer...
calculusxy
  • calculusxy
Okay
Michele_Laino
  • Michele_Laino
I understand. We have to write two functions which model your data contained in both tables
Michele_Laino
  • Michele_Laino
for example, let's consider the first table
calculusxy
  • calculusxy
so can we use: y = mx +b
Michele_Laino
  • Michele_Laino
yes! that's right!
calculusxy
  • calculusxy
Okay so to find m: \[\frac{ (y_2 - y_1) }{ (x_2 -x_1) }\]
Michele_Laino
  • Michele_Laino
when x=0, we have y=0.8, so we can write: 0.8=m*0+b=b so b=0.8
calculusxy
  • calculusxy
So i am going to use the coordinates: (1,1) and (2,1.2) \[\frac{ (1.2 - 1) }{ (2 -1 ) }\]
Michele_Laino
  • Michele_Laino
similarly, when x=1, we have y=1 so we can write: 1=m*1+b=m+b=m+0.8 then: m=1-0.8=0.2 I prefer the substitution method
calculusxy
  • calculusxy
\[\frac{ 0.2 }{ 1 }\]
Michele_Laino
  • Michele_Laino
ok! so we can write: y=0.2*x+0.8
calculusxy
  • calculusxy
yes
Michele_Laino
  • Michele_Laino
now we have to do the same, with the second table
calculusxy
  • calculusxy
for b:\[\frac{ 3.2 - 3.6 }{ 3 -2 }\]
calculusxy
  • calculusxy
That would show a negative slope right?
Michele_Laino
  • Michele_Laino
yes! it is -0.4
calculusxy
  • calculusxy
\[\frac{ -0.4 }{ 1 }\]
Michele_Laino
  • Michele_Laino
ok!
calculusxy
  • calculusxy
so y = -0.4x + 4
Michele_Laino
  • Michele_Laino
so the requested function is: y=-0.4*x+4
calculusxy
  • calculusxy
So those are the two answers right?
Michele_Laino
  • Michele_Laino
yes! right!
calculusxy
  • calculusxy
Can you please help me with my physics homework as well?
Michele_Laino
  • Michele_Laino
ok!
calculusxy
  • calculusxy
Thank you i will make a new post
Michele_Laino
  • Michele_Laino
ok!

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