Video Transcript
Complete using inequality
signs. If ๐ is less than or equal to
negative five, then ๐ plus one blank negative four.
So first of all, in this question,
what weโre told is that ๐ is less than or equal to negative five. But then what we want to do is use
this to help us fill in the blank. And weโre told that ๐ plus one
blank negative four. Well, if we took a look at our
original inequality, ๐ is less than or equal to negative five, then we can see that
what in fact has happened is weโve added one to the left-hand side. And therefore, we have to add one
to the right-hand side because ๐ plus one would give us our ๐ plus one and
negative five plus one would give us our negative four.
So therefore, our inequality sign
must stay the same because in fact what weโre gonna have is the left-hand side and
the right-hand side are gonna have the same relation with each other. So therefore, we can say that ๐
plus one is gonna be less than or equal to negative four.
