Answer: 7.25
Step-by-step explanation: so you draw a graph, and first find the point (-4,1). Then, you can draw a line with a ruler with a slope of 1/2, so the point after (-4,1) would be 2 units to the right, and then one unit up (because the slope is 1/2). After you draw the line, find the point with 8 as the x, and then find the y, which would be 7.25 (I think)