💬 👋 We’re always here. Join our Discord to connect with other students 24/7, any time, night or day.Join Here!

# Find all points on the curve $x^2 y^2 + xy = 2$ where the slope of the tangent line is -1.

## $$(1,1) \text { and }(-1,-1)$$

Derivatives

Differentiation

### Discussion

You must be signed in to discuss.

Lectures

Join Bootcamp

### Video Transcript

in this problem. We're giving any question of function and they were asked by a little porn Is that the, uh where the slope substantial light is negative? One. So let's first find spoke a change of plan to do that last. Take care of all the terms of suspect X. We have two eggs, one special beginnings, particle or disturbance or a second term. Tru X was spread plus two expert wide and fight for him. Plus why Waas extends why Prime z zero. So from this we see that white foreign times to explain why plus X is equal to negative off two X squared off. Why, it means that what time will be up for negative y times through X y will swarm you lighted by x times two x y off one easel kids love and we find the riveter to be thanked. Boy over x Me once looked to be negative one such means that negative are off extra b negative or promise We see that one and should be ex Now we're gonna whenever we see what in orginally question we're gonna put expended were so poor and Solis to that We have experts expect plus x times. Thanks is equal to this is X scrape lives Spirit Pulse 12 From this, we see that X could be one or expertly negative one using this when exes won't be See, that boy is one and one ex is negative for C I a negative one. So the points where to slope off Stensland is negative or are 11 and negative, or make it more.

Derivatives

Differentiation

Lectures

Join Bootcamp