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F(x)={(-(2)/(3)x-3 for x<-3),(x+4 for -3<=x<=1),(-(x-3)^(2)-2 for x>1):} Find f(1)

User Jan Buchar
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Final answer:

To find f(1) for the given piecewise function, we use the appropriate interval for x, which is -3 ≤ x ≤ 1. Substituting x = 1 into the expression for this interval, we get f(1) = 1 + 4, which simplifies to f(1) = 5.

Step-by-step explanation:

To find f(1), we should look at the definition of the function f(x) and determine which part of the piecewise function applies when x equals 1. The function definition provides three expressions for different intervals of x:

For x < -3: f(x) = -(2/3)x - 3

For -3 ≤ x ≤ 1: f(x) = x + 4

For x > 1: f(x) = -(x - 3)² - 2

Because we are looking for f(1), we use the second definition, which holds for -3 ≤ x ≤ 1. Hence, we substitute x with 1:

f(1) = 1 + 4

f(1) = 5

This calculation shows us that the value of the function f(x) at x = 1 is 5.

User Tokland
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