The graph has a hole at the peak. The limit at that x-value

Is the open-circle value (top of curve) Hole → function undefined there, but the limit equals the value the curve approaches.

Is the open-circle value (top of curve)

Removing Discontinuities

AP Calculus AB· difficulty 2/5

x

Explanation

Hole \to function undefined there, but the limit equals the value the curve approaches.

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