Evaluate the function f(x) = 3x^-2x for x=4

Mathematics · Middle School · Sun Jan 24 2021

Answered on

Given the function:

f(x) = 3x^-2x

Evaluate the function at x = 4

Solution:

Substitute 4 to the value of x in the function f(x).

f(x) = 3x^-2x

f(4) = 3(4)^-2(4)

f(4) = 12^-8

f(4) = 1/12^8

f(4) = 2.33 x 10^-9

Final answer:

f(4) = 2.33 x 10^-9