Help with calculus question?

• May 16th 2010, 06:15 AM
daveypi
Help with calculus question?
A curve is defined by the equation
y2 + yx lnx = x, x > 0.

need to show that line x = 1 intersects curve at point A(1,1) and at another point B and find the co-ordinates of B?
• May 16th 2010, 07:01 AM
skeeter
Quote:

Originally Posted by daveypi
A curve is defined by the equation
y2 + yx lnx = x, x > 0.

need to show that line x = 1 intersects curve at point A(1,1) and at another point B and find the co-ordinates of B?

$y^2 + y(1)\ln(1) = 1$

$y^2 = 1$

$y = \pm 1
$