Question

Exercício na imagem, alguém consegue resolver?

Answer 1

a) f(x) = 3x+2

y = 3x+2

x = 3y+2

x-2 = 3y

y = x-2 / 3

f'-(x) = x-2 / 3

b) y = x+5 / x-2

x = y+5 / y-2

x(y-2) = y+5

xy-2x = y+5

xy - y = 2x+5

y(x-1) = 2x+5

y= 2x+5 / x-1

f'-(x) = 2x+5 / x-1