Which of the following represents the domain and range of y = sec x?

First choice

Step-by-step explanation:

The domain is between -infinity and infinity, and if you use a unit circle, you can find that it is undefined at angles of 90 and 270, so it is pi/2 + n*pi if you use radians. Using a unit circle, the range for cos (x) is [-1, 1], so the range of sec (x) or 1/(cos(x)) is (-inf, -1] U [1, inf) or y <= -1 or y >= 1, so the answer is the first choice.

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

need points to ask question

step-by-step explanation: