Question

Determine a função inversa de cada uma das funções

A) y=3x-2
B) y=2x+3/5
C) y=4x
D) y=x/7

Answer 1

1/3x-2
1/2x+5/3
1/4x
7/x

Answer 2

Resposta:

a) y=3x-2

y= x+2/3

b) y=2x+3/5

x= 2y+3/5

5x= 10y+3

-10y= -5x +3

10y= 5x-3

y= 5x-3/10

c) y= 4x

x= 4y

y= x/4

d) y= x/7

x= y/7

7x = y

y=7x