An arch over a lake has the form $y = 220 - 35 \cosh ( x / 35 )$ where x is the number of feet from a point on one side of the lake.What is the highest point on the arch?

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The Answer of An arch over a lake has the form $y = 220 - 35 \cosh ( x / 35 )$ where x is the number of feet from a point on one side of the lake.What is the highest point on the arch?

An Arch Over a Lake Has the Form y=220−35cosh⁡(x/35)y = 220 - 35 \cosh ( x / 35 )y=220−35cosh(x/35)

An Arch Over a Lake Has the Form $y = 220 - 35 \cosh ( x / 35 )$