Question

If f={(2,3),(5,7),(3,3),(5,4),(9,1)} what is the range

Answer 1

`\bf \stackrel{\textit{range is always the set of y-coordinates}}{f=\{(2,\stackrel{\downarrow }{3}),(5,\stackrel{\downarrow }{7}),(3,\stackrel{\downarrow }{3}),(5,\stackrel{\downarrow }{4}),(9,\stackrel{\downarrow }{1})\}}\qquad \qquad \{3,7,3,4,1\}\implies \{3,7,4,1\}`

Answer 2

{3, 7, 3, 4, 1}

Explanation: