(1,8)(-2,7)(1,2)(-6,1)(0,7). find the domain and range, as well as identify if it is funtion or not. do a mapping diagram as well
Look at all the (x,y) pairs
The domain is the set of all the x-values
The range is the set of all the y-values.
Always. For any relation.
It is a function of no x-value is used more than once.
In this case, no. How can f(1) be both 8 and 2?