Answer:
I dont know
Step-by-step explanation:
only doing it for points
Answer:
(y+1)/5
Step-by-step explanation:
you meant f^-1(x) ?
let y= 5x-1
Make x subject of formula
y+1=5x
x=(y+1)/5
f^-1(x)=(x+1)/5 replace y by x
Sure, you can either simplify it further: 1/2 and you could also multiply by 2: 4/8