Let f(w) = 2w^3 - 5. What is f(4)?

Mathematics · Middle School · Thu Feb 04 2021

Answered on

Given the equation:

f(w) = 2w^3 - 5

Determine the value of f(4).

Solution:

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

f(w) = 2w^3 - 5

f(4) = 2(4)^3 - 5

f(4) = 2(64) - 5

f(4) = 128 - 5

f(4) = 123

Final answer:

f(4) = 123

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