Question

Given f(x) = 4x+1/3 solve for f^-1(3).
A. 2
B. 4
C. 6
D. 8

Answer 1

@phi

Answer 2

is this \[ f(x) = \frac{4x+1}{3} \]?

Answer 3

Yes! @phi

Answer 4

this part \( f^{-1}(3) \) means the want the inverse function evaluated at 3.

or, what x makes this true:
\[ f(x) = \frac{4x+1}{3} \\3 = \frac{4x+1}{3}
\]
can you find the x that makes it true ?

Answer 5

Makes it true? I don't understand...Where does the three come in to play? How do I solve? :O

Answer 6

Wait! Would it be 2

Answer 7

Because when you plug in 2 to the equation it comes to 3=3

Answer 8

yes, the answer is 2

Answer 9

A positive

AP cal AP alg AP mR