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OpenStudy (studygurl14):
@mathmale
OpenStudy (studygurl14):
@mathmale @jigglypuff314
OpenStudy (studygurl14):
@mathmale @Directrix @IrishBoy123
jigglypuff314 (jigglypuff314):
First step is to either draw a picture of it to help you visualize what you are looking for
or if you just want numbers, find the points where the two given equations intersect.
OpenStudy (studygurl14):
ok
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OpenStudy (studygurl14):
after I do that, what next?
jigglypuff314 (jigglypuff314):
what points did you get? :)
OpenStudy (studygurl14):
(1,2) and (-0.75, -1.5)
jigglypuff314 (jigglypuff314):
great! so
\[area = \int\limits_{-1.5}^{2}(Upper~equation - Lower~equation)~dy\]
jigglypuff314 (jigglypuff314):
for the upper and lower equations (since we are trying to integrate with respect to y)
we should plug in the equations as
x = y^2 - 3
and
x = 0.5 y
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OpenStudy (studygurl14):
so do I just use \(\large\sqrt{x+3}\) rather than \(\large\pm\sqrt{x+3}\)
OpenStudy (studygurl14):
Oh! I see
jigglypuff314 (jigglypuff314):
yeah, so we are plugging in y^2 - 3 and 0.5 y :)
OpenStudy (studygurl14):
what do i use as the limits
OpenStudy (studygurl14):
the x values or the y
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jigglypuff314 (jigglypuff314):
use the y values we found of the intersection points
so -1.5 and 2 :)