Hey anyone know how I can solve this?
The equation is (x^2)+2x+(y^4)+4y=5
How do I find the coordinates of the two points on the curve where the line tangent to the curve is vertical?
Also, is it possible for this curve to have a horizontal tangent line at the points where it intersects the x-axis? Why or why not?
Any explanations would be great so I could learn how to approach this problem in the future. Thanks!