which equation shows the relation between the vertices of a dilated figure and the vertices of the original figure when the original figure is dilated using a scale factor of 5?

a y2 = x2 + 5,y1 = x1 + 5
b y2 = 5x2,y1 = 5x1
c (x2,y2) = (x1 + 5,y1 + 5)
d (x2,y2) = (5x1,5y1)