answer:
f (2) = 6
step-by-step explanation:
- first plug in 2 as x
- f(2) basically means x = 2
f (2) = 3(2)^0 - 2(2)^-1 + 4
- solve the exponents and use PEMDAS
f (2) = 3(2)^0 - 2(2)^-1 + 4
f (2) = 3 - 1 + 4
- 2 to the 0th power is 1
- 3 times 1 is 3 so we get 3
- 2 to the power of -1 is 1/2 (it gets flipped)
- -2 times 1/2 is -1 so we get 1
- there is nothing to do with +4 so we bring it down
- now, simply solve it using PEMDAS
f (2) = 3 - 1 + 4
f (2) = 2 + 4
f (2) = 6
