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Mar 23, 8:28:56 AM Evaluate the expression for x=-1 f(x)=4*2^(x)

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Final answer:

To evaluate the expression f(x) = 4 * 2^(x) for x = -1, we substitute the value of x into the expression and simplify.

Step-by-step explanation:

To evaluate the expression f(x) = 4 * 2^(x) for x = -1, we substitute the value of x into the expression:

f(-1) = 4 * 2^(-1)

Since 2^(-1) is equivalent to 1/2, we can simplify the expression to:

f(-1) = 4 * (1/2)

And further simplify to:

f(-1) = 2

Therefore, when x = -1, f(x) is equal to 2.

User Serge Bilyk
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