Answer:
The slope of the line is -1/2, and the entire equation should be y = -1/2x + 3/2
Explanation:
Choose two points along the line, for this I chose (3,0) and (-1,2). Finding the slope from there should be (y2 - y1)/(x2-x1), or -1/2. To get the entire line use point slope form of y - y1 = slope (x -x1) with one of the points you already found.
Hopefully this helps- let me know if you have any questions!