A function f(1) is said to have a jump discontinuity at z = a if: 1. lim f(x) exists. 2. lim f(x) exists. 3. The left and right limits are not equal. 5x 8 if. T<7 Let f(a) 1 if a 7 I+9 Show that f(x) has a jump discontinuity at r = 7 by calculating the limits from the left and right at 7. lim f(r) = I7 lim f(r) = I7*

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