The temperature inside a room is uncomfortable if the temperature is lower than 60 or higher than 75?

Question

Write and graph an inequality that describes the situation.

Answer 1

If you are looking for a single inequality that describes

the "range of comfort":

 

60 ≤ t ≤ 75

 

Note I used the "less than or equal to" and

"greater than or equal to" because it says it is

uncomfortable if the temperature is less than 60

or greater than 75.  That means it can be equal

to 60 or 75 but not less or more.

Answer 2

t represents the temperature

t < 60 or 75 < t