Question

@DanJS

Answer 1

hi

Answer 2

y ' = x/y

Answer 3

separate variables, and integrate both sides to get y=

Answer 4

so if you integrate both sides of that you get

y^2 = x^2 + C

Answer 5

y^2 - x^2 = C

Find the constant using point (3,1)

Answer 6

1^2 - 3^2 = C = -8

Answer 7

so
y^2 - x^2 = -8

Answer 8

THe third one is the same as that...

x^2 - y^2 = 8

Answer 9

just multiply both sides by -1

Answer 10

ohh got it, thanks!

Answer 11

no prob,