babygirlpink199
babygirlpink199 babygirlpink199
  • 28-09-2014
  • Mathematics
Answered

Let f(x) = 5x + 12. Find f-1(x).

Answer :

luana
luana luana
  • 28-09-2014
[tex]f(x)=5x+12\\\\ f^{-1}(x):\\ y=5x+12\ \ \ |Subtract\ 12\\ y-12=5x\ \ \ |Divide\ by\ 5\\ \frac{y-12}{5}=x\\\\ f{-1}(x)=\frac{x-12}{5}[/tex]
Answer Link
anna5558
anna5558 anna5558
  • 05-08-2020

Answer:

f^-1(x) = x/5 - 12/5

Step-by-step explanation:

f(x) = 5x + 12

y = 5x + 12

x = 5y + 12

5y = x - 12

y = x/5 - 12/5

f^-1(x) = x/5 - 12/5

Answer Link

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