Can someone help with attached graph?
Need to find:
0s of f
intervals on which f is increasing and decreasing
values of x for which f (x)0
value of x for which f(x)=-9

Question

Can someone help with attached graph? 
Need to find:
0s of f
intervals on which f is increasing and decreasing
values of x for which f (x)>0
value of x for which f(x)=-9

anonymous · Answer

attachment

anonymous · Answer

zeros is where the graph crosses the x axis

anonymous · Answer

the value of x for which $f(x)>0$ are the values for which the curve is above the x axis

anonymous · Answer

hard for me to see it, but the zeros look like 2 and 5
does that look right?

anonymous · Answer

yep, i got everything but increasing and decreasing now

anonymous · Answer

decresing means going down
look like $(-\infty, 4)$

anonymous · Answer

increasing on $(4,5)$

anonymous · Answer

seem reasonable?`

anonymous · Answer

i thought the decreasing one was (-inf, 4] too, but it says its wrong and says 'remember, a function increases, decreases, or is constant on an OPEN interval"

anonymous · Answer

oh wait

anonymous · Answer

yes, that is correct, open

anonymous · Answer

i was putting ] instead of ). i see now

anonymous · Answer

$(-\infty, 4)$ round brackets