## anonymous 3 years ago Implicit function

1. anonymous

$2x + 2ydy/dx = 0$

2. anonymous

I got $\int\limits dy dy/dx = \int\limits - 2x$ $y^2 = -x^2 + C$ the only problem is that I can't take a square root of a negative... am I doing something wrong?

3. anonymous

*y dy/dx

4. zepdrix

Nope! Looks good! You don't really want to solve this one explicitly for y unless the directions say so. Notice how if you add x^2 to both sides, it's the equation of a circle! :D

5. anonymous

lol yea, i had 2 solutions. down for the slope fields. so it's x^2+ y^2 = C?

6. zepdrix

yah that sounds right c:

7. anonymous

oooohh thank-yuh!