Which is the inverse of f(x) = x-3

Question

a) y= 1/x-3

b) y= -x-3

c) y= -x+3

d) y=x+3

Answer 1

To find the inverse, we take the function

y = x - 3

 

then we substitute x for y and y for x

x = y - 3

 

now, solve for y

x + 3 = y

 

So, y = x + 3 is the inverse function