Question: 7. DETAILS a + 4x ifx 7. DETAILS a + 4x if x < 1 Let f(x) 2x2+ 4 if x 1 (a) The value

7. DETAILS a + 4x ifx

7. DETAILS a + 4x if x < 1 Let f(x) 2x2+ 4 if x 1 (a) The value of a that will make f(x) continuous for all real numbers is (b) Is f(x) differentiable at x O true O false

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