SOLUTION: given f(x)=3x+4 1.is f(x) a function? why or why not? 2. find f^-1(x) is f^-1(x)a function? why or why not.

Algebra ->  Rational-functions -> SOLUTION: given f(x)=3x+4 1.is f(x) a function? why or why not? 2. find f^-1(x) is f^-1(x)a function? why or why not.      Log On


   

Question 45025: given f(x)=3x+4
1.is f(x) a function? why or why not?
2. find f^-1(x)
is f^-1(x)a function? why or why not.
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
given f(x) = 3x + 4
1.is f(x) a function? why or why not?
Yes, there are no y-values that result in the same value for 'x'.
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2. find f^-1(x)
f(x) = 3x + 4
y = 3x + 4
x = 3y + 4
x - 4 = 3y
(1/3)x - (4/3) = f^-1(x)
Yes, there are no y-values that result in the same value for 'x'.