. Theaccompanyingtablegivesa5-dayforecastofhighand
lowtemperaturesindegreesFahrenheit(◦F).
(a) Suppose thatxandydenote therespectivehighand
lowtemperaturepredictionsforeachofthe5days. Is
yafunctionofx? Ifso,givethedomainandrangeof
thisfunction.
(b) Supposethatxandydenotetherespectivelowandhigh
temperaturepredictionsforeachofthe5days. Isya
functionofx? Ifso,givethedomainandrangeofthis
function.
75
52
high
low
70
50
71
56
65
48
73
52
mon tue wed thurs fr
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