Question

What is the scale factor of the dilation (with center at the origin) if point E (5,3) becomes E' (15,9) ?



PLZZZ HELP !

Answer 1

divide the x or y coordinate of new point by x or y coordinate of old point:

15/5=3
9/3=3

the dilation factor is 3.

Answer 2

there are 2 methods:1st divide x coordinate of new point by x coordinate of old point
2nd divide y coordinate of new point by y coordinate of old point

Answer 3

Kk thank you SOOO MUCH !!! @alexandervonhumboldt2

Answer 4

you are welcome!