# How do you sketch the graph of #f(x)=arccos(x/4)#?

##### 1 Answer

Aug 3, 2018

See graph, with details.

#### Explanation:

The graph is restricted to be like this.

Inversely,

understandable. Yet, the graph is blocked,

and the the y- periodicity becomes incognito.

See graph.

graph{(y-arccos (x/4))=0}

For contrast, see the wholesome inverse graph of

that is identical with the piecewise wholesome

graph{(x-4 cos y)(x-4 +0.001y) (x+4 +0.001y) = 0[ -5 5 -20 20]}

This graph is not on uniform scale, for better visual effect.