Question

Given f(x) = the quantity of 3x minus 1, divided by 2 solve for f-1(4).

Answer 1

f(x)=(3x-1)/2
now to find inverse find value of x first

Answer 2

f=(3x-1)/2
2f=3x-1
2f+1=3x
x=(2f+1)/3
this is ur inverse
replce x by f^-1 and f by x
f^-1=(2x+1)/3
now juxt put x=4 in it

Answer 3

I'm getting -7/3 o_O, I don't think I calculated it properly. One second.

Answer 4

Oh wow I put -4 instead of 4. Sorry

Answer 5

So its 3?

Answer 6

@gorv

Answer 7

Got 100% on the test. thank you Gorv!