He found 2x.
When you subtract the outer length of the frame from the outer length of the picture you get the length of the actual exposed frame. To find the length on either side if the picture you would divide by 2 because there are 2 X's. Therefore he found 2x
Answer:
-0.8
Step-by-step explanation:
(y2-y1)/(x2-x1)
(-7-5)/(4-2)
-12/2= -6
X= 0.2034394 or 14.50799581 . I hope this helps
