3) Let f'be the function given by (x-1)(x²-4). For what positive values of a is f continuous for all real numbers x? 2 x-a (A) none (B) 1 only (C) 2 only (D) 4 only (E) 1 and 4 only
3) Let f'be the function given by (x-1)(x²-4). For what positive values of a is f continuous for all real numbers x? 2 x-a (A) none (B) 1 only (C) 2 only (D) 4 only (E) 1 and 4 only
Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
Problem 2SE: If a functionfis increasing on (a,b) and decreasing on (b,c) , then what can be said about the local...
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But if a = 4, then we will have a removable discontinuity since the x^2 - 4 in the numerator will cancel with the x^2 - 4 in the denominator leaving f(x) = x - 1 with holes at (2, 1) and (-2, -3). There is no information given that the function is defined at those points, so it remains discontinuous, right?
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