Answer: y= -x+7
Step-by-step explanation: Use the formula (y2-y1)/(x2-x1) to find slope. (3-(-2))/(4-9) equals 5/-5. The slope of this equation is -1. Next, plug in 4 for x and 3 for y. 3=(-1)(4)+b. 3=-4+b, so b =7.
