# Few Questions??

##

For the function ff given above, determine whether the following conditions are true. Input T if the condition is ture, otherwise input F .

(a) f′(x)<0 if 0<x<2;

(b) f′(x)>0 if x>2;

(c) f′′(x)<0 if 0≤x<1;

(d) f′′(x)>0 if 1<x<4.

(e) f′′(x)<0 if x>4;

(f) Two inflection points of f(x)f(x) are, the smaller one is x=

and the other is x=

I have tried to deal with this but i get some some wrong ans. How should i determine the graph?

For the function ff given above, determine whether the following conditions are true. Input T if the condition is ture, otherwise input F .

(a) f′(x)<0 if 0<x<2;

(b) f′(x)>0 if x>2;

(c) f′′(x)<0 if 0≤x<1;

(d) f′′(x)>0 if 1<x<4.

(e) f′′(x)<0 if x>4;

(f) Two inflection points of f(x)f(x) are, the smaller one is x=

and the other is x=

I have tried to deal with this but i get some some wrong ans. How should i determine the graph?

##### 1 Answer

a) T

b) F

c) F

d) T

e) T

f)

#### Explanation:

a) If

b) If

c) If

d) If

e) If

f) An inflection point is the point where the function change of concave to convex or of convex to concave, so if we look we can easy identify the points