WM GRAPHS AND FUNCTIONS Evaluating a piecewise-defined function Suppose that the function f is defined, for all real numbers, as follows = [ if xtl f()= if x= 1 Find f (-2),f(1), and f(4) . 5(-2) = 5 6)
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For f(-2), we have x < 1, so we use the first part of the function: f(-2) = 5(-2) = -10. For f(1), we have x = 1, so we use the second part of the function: f(1) = 6. For f(4), we have x > 1, so we use the first part of the function again: f(4) = 5(4) = 20. Show more…
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