We were told to graph lim f(x) as x approaches 4 which exists but is not equal to f(4).
Could someone explain how to graph this? The answer key shows an open dot going down at (4,4ish?) and then a closed dot above it.
Open dot anywhere in a graph shows that the value of function at that point is not continuous or equal to limits.
As shown in this example, as x approaches 0 the limits approach 5 but f(0) is 7.
In other words, the limit exists but its value is not equal to function value
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