Answer:
a - neither
b - dilation
c - rigid Motion
d - neither
Explanation:
Dilation is when all variables are multiplied by the same value.
Rigid Motion is when all variables are increased or decreased by the same value.
Question A has a variable multiplied to and the other increased and is, therefore, neither due to both actions only occurring once.
Question B is a dilation because both variables are multiplied by the same number.
Question C is a Rigid Motion because the same number increases both variables.
Question D is neither because only one variable is changed.