Knowee
Questions
Features
Study Tools

Identify the statement that is FALSE:If a function ๐‘“ is continuous on (๐‘Ž,๐‘), then ๐‘“ always has an absolute minimum on (๐‘Ž,๐‘).If a function ๐‘“ is continuous on [๐‘Ž,๐‘], then ๐‘“ always has an absolute minimum on [๐‘Ž,๐‘].If a function ๐‘“ is continuous on [๐‘Ž,๐‘] and ๐‘“ has no relative extrema in (๐‘Ž,๐‘), then the absolute maximum of ๐‘“ on [๐‘Ž,๐‘] exists and occurs at either ๐‘ฅ=๐‘Ž or ๐‘ฅ=๐‘.If a function ๐‘“ has an absolute minimum value on (๐‘Ž,๐‘), then there is a critical point of ๐‘“ in (๐‘Ž,๐‘).

Question

Identify the statement that is FALSE:If a function ๐‘“ is continuous on (๐‘Ž,๐‘), then ๐‘“ always has an absolute minimum on (๐‘Ž,๐‘).If a function ๐‘“ is continuous on [๐‘Ž,๐‘], then ๐‘“ always has an absolute minimum on [๐‘Ž,๐‘].If a function ๐‘“ is continuous on [๐‘Ž,๐‘] and ๐‘“ has no relative extrema in (๐‘Ž,๐‘), then the absolute maximum of ๐‘“ on [๐‘Ž,๐‘] exists and occurs at either ๐‘ฅ=๐‘Ž or ๐‘ฅ=๐‘.If a function ๐‘“ has an absolute minimum value on (๐‘Ž,๐‘), then there is a critical point of ๐‘“ in (๐‘Ž,๐‘).

...expand
๐Ÿง Not the exact question you are looking for?Go ask a question

Solution

The statement that is FALSE is: "If a function ๐‘“ is continuous on (๐‘Ž,๐‘), then ๐‘“ always has an absolute minimum on (๐‘Ž,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‘Ž,๐‘], not an open interval (๐‘Ž,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.

This problem has been solved

Similar Questions

f(c) is the maximum value of f on [a, b] if ๐‘“(๐‘)โ‰ค๐‘“(๐‘ฅ)

Consider the function:๐‘“(๐‘ฅ)=๐‘ฅ3โˆ’3๐‘ฅ22โˆ’36๐‘ฅFind the relative maximum point on this function.

Find the open intervals on which the function ๐‘“ is increasing or decreasing, and find the ๐‘ฅ-values of all relative extrema (turning points).๐‘“(๐‘ฅ)=18โ‹…๐‘ฅโˆ’๐‘ฅ3

Select the correct answer.Consider function f.๐‘“โก(๐‘ฅ)={2๐‘ฅ,๐‘ฅ<0-๐‘ฅ2โˆ’4โข๐‘ฅ+1,0<๐‘ฅ<212โข๐‘ฅ+3,๐‘ฅ>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, ๐‘“โก(๐‘ฅ) approaches positive infinity.

๐‘“(๐‘ฅ)={๐‘ฅ2โˆ’2๐‘Ž๐‘ฅ+๐‘Ž2๐‘ฅโˆ’๐‘Ž5,๐‘–๐‘“๐‘ฅ=๐‘Ž,๐‘–๐‘“๐‘ฅโ‰ ๐‘Žf(x)={ xโˆ’ax 2 โˆ’2ax+a 2 โ€‹ 5,ifx=aโ€‹ ,ifxโ‰ aWhich of the following are true about f?I.ย limโก๐‘ฅโ†’๐‘Žย ๐‘“(๐‘ฅ)ย ย exists.II.ย ๐‘“(๐‘Ž)ย ย exists.III.๐‘“(๐‘ฅ)ย ย isย continuousย atย xย =ย aโ€‹ I.ย  xโ†’alimโ€‹ ย f(x)ย ย exists.II.ย f(a)ย ย exists.III.f(x)ย ย isย continuousย atย xย =ย aโ€‹

1/3

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.