Question

A) {(0,1),(1,2),(2,3),(3,4),(1,5)}

Answer 1

Letter B is a function because all the x values are different. Letter C is a function also because even though the number 4 repeats, it is in the y value and not the x so as long as the x value’s are different, it is a function. Letter A is not a function because there are 2 of the same x values.