PLEASE HELP ASAP Pentagon OPQRS is shown on the coordinate plane below:

Pentagon OPQRS on a coordinate plane with ordered pairs at O negative 1, 2, at P negative 5, 3, at Q negative 3, negative 2, and R 2, 1, at S 2, 5.

If pentagon OPQRS is dilated by a scale factor of seven over four from the origin, to create O'P'Q'R'S', what is the ordered pair of point P'?

(−8.75, 5.25)

(−1.25, 0.75)

(−3.5, 8.75)

(−1.75, 3.5
also, how do I solve it for future reference?