x+20 The function fx) = X-5 is oneto-one. For the tunction, a. Find an equation for f (x), the inverse function. b. Verity that your equation is correct by showing that (r) -x andM- a. Select the correct choice below and, it necessary, in the answer box to complete your choice (Simpify your answer. Use integers or fractions for any numbers in the expression) OA '- OB r'= for x2 for xs Oc r'm- OD r'm- for x for al x Verity that the equation is correct. Subsitute and and Simpify. The equation is

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