Algebra-1

To determine for which values of x and y the set of ordered pairs {(7,y),(2,4),(x,1)} represents a function, we must ensure that each x value in the set maps to a unique y value.

A. x=7,y=1: This gives us the set {(7,1),(2,4),(7,1)}.

Here, x=7 maps to y=1. This set does not represent a function because x=7 maps to two different y values (1 and 1).

B. x=7,y=4: This gives us the set {(7,4),(2,4),(7,1)}.

Here, x=7 maps to y=4. This set does not represent a function because x=7 maps to two different&n...