Question

Let f(x) = 2x - 6 Solve f-1(x) when x = 2.

Answer 1

\[\large f(x) = 2x - 6\]


\[\large y = 2x - 6\]


\[\large x = 2y - 6\]


\[\large x+6 = 2y\]


\[\large \frac{x+6}{2} = y\]


\[\large y = \frac{x+6}{2}\]


\[\large f^{-1}(x) = \frac{x+6}{2}\]


\[\large f^{-1}(2) = \frac{2+6}{2}\]


\[\large f^{-1}(2) = ???\]

Answer 2

So, the answer would be -2 ?

Answer 3

no

Answer 4

4?

Answer 5

you need to evaluate \(\large \frac{2+6}{2}\)

Answer 6

8 over 2 which equals 4?

Answer 7

2 + 6 = 2 if you divide that by 2 that would be 6 ? but, thats not an answer choice @jim_thompson5910 sorry, im a bit confused ..

Answer 8

\(\large \frac{2+6}{2} = \frac{8}{2} = 4\)

Answer 9

not sure how you're getting 2+6 = 2

Answer 10

thats what i said! 4..

Answer 11

yes I know henry

Answer 12

I suck at math, but thankyou !!

Answer 13

I'm writing it for Nurialozza96

Answer 14

lol i should get a Best Response huh

Answer 15

I'm sure she's just fine at it, she just needs more practice, that's all

Answer 16

@henryarias5 you're childish, get off my page please. goodbye. and @jim_thompson5910 thankyouuuu !!!

Answer 17

you're welcome