How do you graph y=3sec(π2x)?

1 Answer
Nov 28, 2016

The period of the graph is 4. Look for graph x[0,4], sans the points oh infinite discontinuity at x = 1 and x = 3, for the part of the graph, for one period.

Explanation:

sec (odd multiple of π2) = ±.

The period for the graph is

the period for #cos (pi/2x) = (2pi)/(pi/2) = 4.

y=±3, alternately, when x = an even integer.

y±, as x an odd integer.

graph{ycos(pi/2x)+3=0 [-20, 20, -10, 10]}