Question
Please explain! 1.) Determine whether the Mean Value theorem can be applied to f on the closed interval[ a , b ].(Select all that apply.)
Please explain!
1.)Determine whether the Mean Value theorem can be applied tofon the closed interval[a,b].(Select all that apply.)
f(x) =8x3,[1, 2]
-Yes, the Mean Value Theorem can be applied.
-No, becausefis not continuous on the closed interval[a,b].
-No, becausefis not differentiable in the open interval(a,b).
-None of the above.
If the Mean Value Theorem can be applied, find all values ofcin the open interval(a,b)
such thatf'(c) =f(b)f(a)/ba.(Enter your answers as a comma-separated list. If the Mean Value Theorem cannot be applied, enter NA.)
c=?
2.) A rancher has80feet of fencing with which to enclose two adjacent rectangular corrals (see figure). What dimensions should be used so that the enclosed area will be a maximum?
x=?ft
y=?ft
3.) Consider the following function.
f(x) =2x+1/x
(a) Find the critical numbers off. (Enter your answers as a comma-separated list.)
x=?
(b) Find the open intervals on which the function is increasing or decreasing. (Enter your answers using interval notation. If an answer does not exist, enter DNE.)
increasing= ?
decreasing=?
(c) Apply the First Derivative Test to identify the relative extremum. (If an answer does not exist, enter DNE.)
relative maximum(x,y)=(?,?)
relative minimum(x,y)=(?,?)
4.)Find the point of inflection of the graph of the function. (If an answer does not exist, enter DNE.)
f(x) =x+5cosx,[0, 2]
(x,y)=?(smallerx-value)
(x,y)=?(largerx-value)
Describe the concavity. (Enter your answers using interval notation. If an answer does not exist, enter DNE.)
concave upward:?
concave downward:?
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