What is the rule for the function shown in the table?
x|-1|0|1|2
y|-2|1|4|7
Ay = 1/3x + 1
By = 3x +1
Cy = 1/3x
Dy = 1/2x + 1
x|-1|0|1|2
y|-2|1|4|7
Ay = 1/3x + 1
By = 3x +1
Cy = 1/3x
Dy = 1/2x + 1