Is the function f$($x$)$ shown in the table below a linear function?Xf$($x$)-2-7-1-4-3-4-73-12$ No$,$ the ratio of change in input to change in output is not constant Yes, the ratio of change in input to change in output is constant Yes, each input has exactly one output No$,$ there are multiple outputs for at least one input Triceratops