# How do you graph #y= 3cos(x-pi/3)#?

##### 2 Answers

Calculate the desired number of data points, and put them on an appropriate graph paper.

#### Explanation:

ANY graphing or plotting must start with a table of values of the independent variable and the evaluated expression. With those values you may plot them on graph paper manually, or use a computer plotting program.

Sometimes, we just want a rough sketch, in which case recognizing the general forms of common equations such as lines, parabolas, and cubics is helpful. In this case we have a cyclic function (cos) that is off-set by

As Below.

#### Explanation:

Standard form of cosine function is

Now youcan draw the graph, knowing salient features.

graph{3 cos(x - (pi/3)) [-10, 10, -5, 5]}