Identify the statement that is FALSE:If a function ๐ is continuous on (๐,๐), then ๐ always has an absolute minimum on (๐,๐).If a function ๐ is continuous on [๐,๐], then ๐ always has an absolute minimum on [๐,๐].If a function ๐ is continuous on [๐,๐] and ๐ has no relative extrema in (๐,๐), then the absolute maximum of ๐ on [๐,๐] exists and occurs at either ๐ฅ=๐ or ๐ฅ=๐.If a function ๐ has an absolute minimum value on (๐,๐), then there is a critical point of ๐ in (๐,๐).
Question
Identify the statement that is FALSE:If a function ๐ is continuous on (๐,๐), then ๐ always has an absolute minimum on (๐,๐).If a function ๐ is continuous on [๐,๐], then ๐ always has an absolute minimum on [๐,๐].If a function ๐ is continuous on [๐,๐] and ๐ has no relative extrema in (๐,๐), then the absolute maximum of ๐ on [๐,๐] exists and occurs at either ๐ฅ=๐ or ๐ฅ=๐.If a function ๐ has an absolute minimum value on (๐,๐), then there is a critical point of ๐ in (๐,๐).
Solution
The statement that is FALSE is: "If a function ๐ is continuous on (๐,๐), then ๐ always has an absolute minimum on (๐,๐)."
This is because the Extreme Value Theorem, which guarantees the existence of an absolute minimum (and maximum), only applies to functions that are continuous on a closed interval [๐,๐], not an open interval (๐,๐). In an open interval, a function can approach but never reach a certain value, so it may not have an absolute minimum or maximum.
Similar Questions
f(c) is the maximum value of f on [a, b] if ๐(๐)โค๐(๐ฅ)
Consider the function:๐(๐ฅ)=๐ฅ3โ3๐ฅ22โ36๐ฅFind the relative maximum point on this function.
Find the open intervals on which the function ๐ is increasing or decreasing, and find the ๐ฅ-values of all relative extrema (turning points).๐(๐ฅ)=18โ ๐ฅโ๐ฅ3
Select the correct answer.Consider function f.๐โก(๐ฅ)={2๐ฅ,๐ฅ<0-๐ฅ2โ4โข๐ฅ+1,0<๐ฅ<212โข๐ฅ+3,๐ฅ>2Which statement is true about function f? A. The function is continuous. B. The function is increasing over its entire domain. C. The domain is all real numbers. D. As x approaches positive infinity, ๐โก(๐ฅ) approaches positive infinity.
๐(๐ฅ)={๐ฅ2โ2๐๐ฅ+๐2๐ฅโ๐5,๐๐๐ฅ=๐,๐๐๐ฅโ ๐f(x)={ xโax 2 โ2ax+a 2 โ 5,ifx=aโ ,ifxโ aWhich of the following are true about f?I.ย limโก๐ฅโ๐ย ๐(๐ฅ)ย ย exists.II.ย ๐(๐)ย ย exists.III.๐(๐ฅ)ย ย isย continuousย atย xย =ย aโ I.ย xโalimโ ย f(x)ย ย exists.II.ย f(a)ย ย exists.III.f(x)ย ย isย continuousย atย xย =ย aโ
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.