Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions.

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions

\[\frac{ d ^{2}y }{ dx ^{2} }>0\]
a. y<0
b. y>0
c. x>0

Have you tried to find your y''? :)

yes

\[y''=-\frac{ x ^{2}+y ^{2} }{ y ^{3}}\]

Ooo ok ya :O derivative looks good!
So we have to figure out some conditions huh? Hmm

yes I don't know how to figure that out

Notice that x^2 is ALWAYS positive.
So y is the only thing dictating the sign of y''.

So ummmm

There's probably a more algebraic way to do this,
but I can't think of it :) lol

so b is the answer if I'm understanding correctly?

wait no, its A

so a is the answer?

yes

ooh ok. Thank you for the great explanation!

np c: