Question

Please answer question A) please ASAP ☺️

Answer 1

Given function:

• P(n) = 0.4n + 5.7

Find its inverse:

• x = 0.4
  `P^(-1)`(x) + 5.7
• 0.4
  `P^(-1)`(x) = x - 5.7
• 
  `P^(-1)`(x) = (x - 5.7)/0.4
• 
  `P^(-1)`(x) = x/0.4 - 5.7/0.4
• 
  `P^(-1)`(x) = 2.5x - 14.25

a) Correct choice is B

• 
  `P^(-1)`(x) is the amount of vitamins n for a price of x dollars.

b) See above the equation of inverse function.

c) Find the value of inverse function when x = 8.3

• 
  `P^(-1)`(8.3) = 2.5*8.3 - 14.25 = 6.5 grams