Answer:
x=12
Step-by-step explanation:
the 2 triangles are proportionately identical.
the larger one is 1/3 larger, so x would be 9 plus 1/3 of 9- 12
-2
slope = (y1-y2)/(x1-x2)
= (3-1)/(0-1)
= 2/-1
= -2
1345 is answer but not sure