Pointj-2.1) and point k(45) form line segment jr. for the point p that partions jk in the ratio 3.7, what is the y-coordinate of p?

The coordinates of point P would be (2.6, 1.6).

The ratio of the sides being 3:7 means that the segment JP would be 3/10 of the total and PK would be 7/10 of the segment.  

The slope of JK is given by finding the rise/run; in this case that is 4/2=2.  Since JP is 3/10 of the segment, we add 3/10 of the rise to the x-coordinate and 3/10 of the run to the y-coordinate:

(3/10(2)+2, 3/10(2)+1)
=(6/10+2, 6/10+1)
=(2.6, 1.6)

Ithink its 126 hope its