<span>Yes you're right.
The way to find out if functions are inverses of each other is to check
and see if their composite functions are equal to x. Also make sure the
functions are one to one functions.
(fog)(x)=f(g(x))=f(3/2x-9)
f(3/2x-9)=2/3(3/2x-9)+6
=(2/3)(3/2)x+(2/3)(-9/1)+6
=x-18/3+6
=x-6+6
I hope this helped! #Sobangcha
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It is 6s. That's the answer.
Don't make the mistake of saying that the new function is up above the given function. f(x) + 3 is not above f(x) = x. f(x) + 3 is below f(x).
The answer is B <<<<<=====
y + 3 = x is the way you can think of it.
y = x - 3 is what it is. If you have a graphing calculator, graph it. You want to see that it is below f(x) = x or going down.
z = (x - μ)/σ
Substituting given values, you have
3.6 = (x - 132)/20
(20)(3.6) = x - 132 . . . . multiply by 20
72 + 132 = x . . . . . . . . .add 132
204 = x
The value that has a z-score of 3.6 is 204.
The 5 in 42.05 is 5 hundredths <span />
