The answer of the plot box is
To determine the scale factor that should be used in order to correct the size of the post card, we simply have to divide the original length of the picture which is 4.5 inches by the space available, 1.8 inches. This gives an answer of,
scale factor = 4.5 inches / 1.8 inches = 2.5
-3x - 6 +(-1) =
-3x - 6 - 1 =
-3x - 7 <==
4 because you multiplied the 5 by 2 to get to the 10, so you have to do that to the 2. 2x2=4
