Triangle mno has been dilated to form triangle mꞌnꞌoꞌ.

what is the scale factor?

two triangles graphed on a coordinate grid. one triangle has coordinates m (one, negative three), n (negative two, zero), o (two, one). the other triangle has coordinates m-prime (one and five-tenths, negative four and five-tenths), n-prime (negative three, zero), o-prime (three, one and five-tenths). side m o is labeled four, and side m-prime, o-prime is labeled six.