Lily hikes at least 1 hour but not more than 3 hours. She hikes at an average rate of 2.2 miles per hour.
The distance Lily hikes in t hours is modeled by a function.
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RhondaSommer (rhondasommer):
I believe D, simply because it would be all real numbers in between. :)
OpenStudy (kittiwitti1):
at least one hour: lower bound 1
at most 3 hours: upper bound 3
OpenStudy (kittiwitti1):
\[\{D~|~1\le t\le3\}\]
OpenStudy (kittiwitti1):
based on this, calculate y-values for endpoints \(x=1\) and \(x=3\)\[2.2\times1=2.2\]\[2.2\times3=6.6\]
OpenStudy (kittiwitti1):
therefore range:\[\{R~|~2.2\le f(x)\le6.6\}\]
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OpenStudy (kittiwitti1):
C) is the domain, but they want the range... B) isn't likely since we have set point bounds.
That leaves A) or D)
RhondaSommer (rhondasommer):
All real numbers apply though?
RhondaSommer (rhondasommer):
Because she could stop at anytime.
OpenStudy (kittiwitti1):
Yes. I was getting to that.
RhondaSommer (rhondasommer):
kk
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OpenStudy (kittiwitti1):
@Yuii you okay with that?
OpenStudy (yuii):
Okay with what?
OpenStudy (kittiwitti1):
The answer lol
OpenStudy (yuii):
Oh lol
Sorry, it's D right?
OpenStudy (kittiwitti1):
Yep
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