Finding Intersection Points of 3 Curves in the First Quadrant

[h6872]

hi,
the question goes as follows:
y = x^2, y=1/x, y=4 for the first quadrant.

This may be a dumb question but how do I figure out the points at which these three intersect? Do I first set the first two equal to each other and then set the resulting equation equal to 4? Thanks!
-heather

 

[anjor]

you first find the three intersection points... taking two at a time.
take only the solutions that lie in the first quadrant.
and then see what curves u need to integrate...
i hope that helps.
p.s. - plotting the curves simultaneously on a graph paper might help.

 

[assyrian_77]

You can do it by setting each two equations equal to each other, i.e. y1=y2, y1=y3 and y2=y3.

Edit: Late as usual... but I agree with anjor; plot them.