anonymous
  • anonymous
fan and medal! The table below represents the displacement of a turtle from its nest as a function of time: Time (hours) x Displacement from nest (miles) y 0 5 1 27 2 49 3 71 4 93 Part C: What would be the domain of the function if the turtle continued to walk at this rate until it traveled 225 miles from the nest? (2 points)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
@welshfella @ganeshie8 @peachpi someone please help me
nonopro
  • nonopro
hi
nonopro
  • nonopro
oh

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anonymous
  • anonymous
@nonopro hey:( im still having trouble on this thing still
anonymous
  • anonymous
do you know how to find the slope of a line?
anonymous
  • anonymous
yea. the slope is: y1-y2/x1-x2
anonymous
  • anonymous
right, so if you use 2 of your points, what slope will you get?
anonymous
  • anonymous
ok... so my points are, 93 and 5 for the y. and for x, 4 and 0. will that work?
anonymous
  • anonymous
yes
anonymous
  • anonymous
93-5/4-0=88/4=22.
anonymous
  • anonymous
right, and 5 is the y-intercept so the equation for the line is\[y=22x+5\]
anonymous
  • anonymous
So now we plug in 225 for y and solve for x. \[225=22x+5\]
anonymous
  • anonymous
so... what would I put for the x?
anonymous
  • anonymous
don't put anything for x. We have to solve the equation to find it.
anonymous
  • anonymous
i agree with peachipi
anonymous
  • anonymous
x is last
anonymous
  • anonymous
ok.
anonymous
  • anonymous
and whatever you do to one side you have to do to the other side
anonymous
  • anonymous
so what should I do now?
anonymous
  • anonymous
Subtract 5 from both sides |dw:1441296519676:dw|
anonymous
  • anonymous
@peachpi sorry I had to go some where. 225-5=220 and then 5-5 equals 0.
anonymous
  • anonymous
@peachpi so what would be the next step? oh and is my first one correct?^^
anonymous
  • anonymous
divide both sides by 22
anonymous
  • anonymous
22/22 equals 10.
anonymous
  • anonymous
220*/22=10
anonymous
  • anonymous
yes so x = 10 so the domain is \[0\le x \le10\]
anonymous
  • anonymous
thank you!.

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