Plug in x - 1 where y is. The equation will turn in 2x - 3(x - 1) = -1. Distribute, and you'll have 2x -3x + 3 = -1. Combine like terms (2x and -3x) and you'll have -x + 3 = -1. Subtract 3 from both sides, and you'll have -x = -4. Divide by -x (or -1) on both sides, and you'll have x = 4. Since y = x - 1, y = 3, since 4 - 1 = 3. Sorry if this sounds repetitive btw. Good luck :D
For this case we have the following function: f (x) = (1/3) * (4 ^ x) We must evaluate the function for x = 2 We have then: f (2) = (1/3) * (4 ^ 2) Rewriting: f (2) = (1/3) * (16) f (2) = 16/3 Answer: The function evaluated at x = 2 is: f (2) = 16/3 option A
