2. Using the graph provided, write the equation of the line in slope-intercept form, standard form, and point-slope form. Notice that the points (-2, 3) and (2,1) are on the line.
 a. Slope-intercept form y=mx + b
 b. Standard Form ax + by=c 
 c. Point-Slope Form y – y1 = m(x – x1)