At 4 p.m. on a winter day, an arctic air mass moved from Kansas into Oklahoma, causing temperatures to plummet. The temperature T = T(h) in degrees Fahrenheit h hours after 4 p.m. in Stillwater, Oklahoma, on that day is recorded in the following table. Hours T Temperature since 4 P.M. 62 0 59 1 38 2 26 3 22 4 Warm Cold (a) Use functional notation to express the temperature in Stillwater at 5:30 p.m X Estimate the value of the above term. (Round your answer to one decimal place.) O X (b) What was the average rate of change per minute in temperature between 4 p.m. and 5 p.m.? (Round your answer to two decimal places.) X What was the average decrease per minute over that time interval? (Round your answer to two decimal places.) X /min (c) Estimate the temperature at 4:15 p.m. (Round your answer to one decimal place.) X (d) At about what time did the temperature reach the freezing point? 6 30 p.m Explain your reasoning.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
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Chapter4: Polynomial And Rational Functions
Section4.3: Zeros Of Polynomials
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At 4 p.m. on a winter day, an arctic air mass moved from Kansas into Oklahoma, causing temperatures to plummet. The
temperature T = T(h) in degrees Fahrenheit h hours after 4 p.m. in Stillwater, Oklahoma, on that day is recorded in the following
table.
Hours
T Temperature
since 4 P.M.
62
0
59
1
38
2
26
3
22
4
Warm
Cold
(a) Use functional notation to express the temperature in Stillwater at 5:30 p.m
X
Estimate the value of the above term. (Round your answer to one decimal place.)
O
X
(b) What was the average rate of change per minute in temperature between 4 p.m. and 5 p.m.? (Round your answer to
two decimal places.)
X
What was the average decrease per minute over that time interval? (Round your answer to two decimal places.)
X /min
(c) Estimate the temperature at 4:15 p.m. (Round your answer to one decimal place.)
X
(d) At about what time did the temperature reach the freezing point?
6
30
p.m
Explain your reasoning.
Transcribed Image Text:At 4 p.m. on a winter day, an arctic air mass moved from Kansas into Oklahoma, causing temperatures to plummet. The temperature T = T(h) in degrees Fahrenheit h hours after 4 p.m. in Stillwater, Oklahoma, on that day is recorded in the following table. Hours T Temperature since 4 P.M. 62 0 59 1 38 2 26 3 22 4 Warm Cold (a) Use functional notation to express the temperature in Stillwater at 5:30 p.m X Estimate the value of the above term. (Round your answer to one decimal place.) O X (b) What was the average rate of change per minute in temperature between 4 p.m. and 5 p.m.? (Round your answer to two decimal places.) X What was the average decrease per minute over that time interval? (Round your answer to two decimal places.) X /min (c) Estimate the temperature at 4:15 p.m. (Round your answer to one decimal place.) X (d) At about what time did the temperature reach the freezing point? 6 30 p.m Explain your reasoning.
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