Mathematics
13 Online
OpenStudy (anonymous):
Please help me answer this question below...
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OpenStudy (anonymous):
OpenStudy (cwrw238):
d
OpenStudy (anonymous):
B
OpenStudy (anonymous):
now im confused...
OpenStudy (cwrw238):
i think i;m correct but i;ll check it out on wolfram
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OpenStudy (anonymous):
alright thanks :)
OpenStudy (cwrw238):
yes its d
OpenStudy (anonymous):
The top graph looks like B
OpenStudy (anonymous):
thanks alot guys! i'm going for D
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OpenStudy (anonymous):
The bottom graph is from -20 to 20.. You want the one from 0 to 2pi
jimthompson5910 (jim_thompson5910):
It's definitely not D for sure, it's either B or C
OpenStudy (anonymous):
I think it does go from 0 to pi, horizontically.
OpenStudy (anonymous):
whoa im so confused now :(
jimthompson5910 (jim_thompson5910):
ok, just checked the graph once more and i'm 100% sure it's B
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OpenStudy (anonymous):
how did you come to that conclusion?
jimthompson5910 (jim_thompson5910):
The graph of y = 2*sin(x-pi) is concave down from x = 0 to x = pi, which matches choice B
jimthompson5910 (jim_thompson5910):
also, the graph is decreasing on the interval (-pi/2, pi/2), which also matches choice B
OpenStudy (anonymous):
oh alright. Thank you very much!
OpenStudy (cwrw238):
yes - sorry - i made a mistake - the answer is b