Q. f(x)=⎩⎨⎧−(x−1)2+1−16x−32 for for for 1≤x<4x=4x>4Find f(4)Answer:
Identify Interval for x=4: Identify the correct piece of the piecewise function to use for x=4.The function f(x) is defined differently for different intervals of x. Since we are looking for f(4), we need to use the definition of f(x) that applies when x=4.
Use Definition for x=4: Use the definition of f(x) for x=4. According to the given piecewise function, f(x)=−1 when x=4.
Calculate f(4): Calculate the value of f(4).Since f(x)=−1 for x=4, we have f(4)=−1.
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