Question

DIFFERENTIAL EQUATIONS

Answer 1

rate change means
\[\frac{ dy}{ dx } \]
inversely proportional
\[\frac{ dy }{ dx } \alpha \frac{ 1 }{ y ^{4} }\]
omit the proportionality symbol and put = times constant(that's just its meaning).
\[\frac{ dy }{ dx }= \frac{ k }{ y ^{4} }\]

Answer 2

ohh i dont know why but i got y^4/k, i ust did it upside down

Answer 3

well that was easy(: hahah thanks for the explanation

Answer 4

ur welcome (if it was y^4/k it can be solved also)