WEBVTT
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were given a fallen function. C. A.
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T is equal to 9.99 minus their points overnight.
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Two brackets of one minus state where those brackets represented
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nearest and pitcher and see if t represents it.
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Cost of a long distance phone call and teeth is
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the not of minutes. So for part, A
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were asked to analyse See of 10.75 so we can
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pluck into equation zero point Southern nine one minus 10.75
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which is equal to 9.99 minus 0.7 Fine, uh
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, negative 9.75 And we know that that those brackets
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just mean to the nearest integer. So we end
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up with 9.99 minus zero point Southern. I'd of
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negative ton coast on your son. Sure, they
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don't quite have five side of time. If we
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simply simplify all that down, you get 17.89 And
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so this shows that it costs$17.89 after 10.75 minutes
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. Art. So for part B were asked,
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Ask the limit as CFT. So the longer it
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has a Z t a purchase 30 c ity your
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ass. Determine if that exists. So to do
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this, we need to graph it from t it
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from zero to sex. Been. So looking at
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this, we can see the other three. Right
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, Cassie at three. Right here from here to
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here there. It's not continuous. And so therefore
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, we know that the limit does not exist,
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so limit there's not exist.