what is the range of the function f(x)=2(3^x)?

Question

The function f(x)=2(3^x) has the domain (0,1,3,4). Which of the following is the range of the function?

 

Answer 1

f(x)=2*3^x

 

f(0) = 2*3⁰ = 2*1 = 2                    [3⁰=1]

f(1) = 2*3¹ = 2*3 = 6                    [3¹=3]

f(3) = 2*3³ = 2*27 = 54                 [3³=3*3*3=27]

f(4) = 2*3⁴ = 2*81 = 162               [3⁴=3*3*3*3=81]

 

Looks like (2,6,54,162)