Answer:
(a) f(3) - f(2) = 53 - 45 = 8
(b) f(3) - f(1) = 53 - 37 = 16 = 2(8)
(c) f(3) - f(0) = 53 - 29 = 24 = 3(8)
(d) f(x) = 8x + 29, so the difference of outputs of any two inputs that are x units apart is 8x.
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