This week in math we mostly looked at the differences between functions and relations.

When you know what your looking for it can be easing to tell the difference between the 2.

This is a common visual we will see throughout this unit. We may be asked to figure out if the question is a function or relation by looking at something like this. We know if it’s a function or relation by being attentive to our X column which is on the left.

The first set of columns we see is going to be a relation. We can tell because if we look in our X column we notice that we have a set of 2’s and whenever we see a multiple of a number we know it’s not a function. On the other hand our second set of columns is a function because we don’t have a set of numbers in our X column.