Find length jm in the image attached.

12

Step-by-step explanation:

I find it convenient to use the following relation:

JL -KL +5 = JM

(x +7) -(2x -4) +5 = 3x . . . . . substituting values shown

16 -x = 3x . . . . . . . . . . . . . . . collect terms

16 = 4x . . . . . add x

4 = x . . . . . . . divide by 4

JM = 3x = 3·4 . . . . . . find the length of JM

JM = 12

p = -12

Step-by-step explanation:

I used graph paper to graph point (-7,-6) then i used the slope to continue to graph the rest of the points until i got to (-1,-12).