A student needs to make a square cardboard piece. The cardboard should have a perimeter equal to at least 92 inches. The function f(s) relates the perimeter of a cardboard piece, in inches, to the length of its side in inches. Which of the following shows a reasonable domain for f(s)?

23

Question

A student needs to make a square cardboard piece. The cardboard should have a perimeter equal to at least 92 inches. The function f(s) relates the perimeter of a cardboard piece, in inches, to the length of its side in inches. Which of the following shows a reasonable domain for f(s)?

 23 < s < 46
 23 < s < 92
 s ≥ 92
 s ≥ 23

astrophysics · Answer

Note that perimeter is the total distance around a shape. So for a square, letting `a` be one side we get $$P=4a$$ this will be our perimeter.

cal.lavender · Answer

f(s)>=92
f(s)=4s as we now from the perimeter of a square
so s>=92/4
though, it's direct, I think it is understandable :)

astrophysics · Answer

Or you can do everything

astrophysics · Answer

So what this is saying is one side I guess they use s, has to be at least greater or equal to 23, as stated above. 
$$f(s) \ge 23$$

Do you understand?

celinegirl · Answer

Sorry for the late reply.. yes I understand. It's D correct?