Sofia used these steps to find the Inverse of function f. Step 1
f(3) = 3+1
given
Step 2
31 + 4
y =
8
change / () to y
Step 3
3y + 4
1 =
8
switch x and y
81
Step 4
II
3y + 4
multiply each side by 8
Step 5
81 – 4 = 3y
subtract 4 from each side
Step 6
241 – 12 = y
multiply each side by 3
Step 7
241 – 12 = 1-1()
replace y with 1-10)
Use this information to complete the statement.
Sofia made a mistake in step
She should have

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

x=0

step-by-step explanation:

it would be 4 over -2 divided by -1 over 3.

if you want a solution it would be 4

you flip it so it would be 4/-2 divided by 3/-1 then it would be 12/3 and you would simplify it to 4