Write an equation in slope intercept form for the line that passes through (-3,-1) and is parallel to the line that passes through (3,3) and (0,6)

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)