Answer:
y = x + 3.1
Step-by-step explanation:
As we move from (-8.3, -5.2) to (6.4,9.5), the horizontal change ("run") is 14.7 and the vertical change is 14.7. Thus, the slope is m = rise / run = 14.7 / 14.7 = 1.
Write out y = mx + b. Because m = 1, we have
9.5 = 1(6.4) + b, or 9.5 = 6.4 + b, with the result that b = 3.1
and so the desired equation is y = x + 3.1
