[ATTACH=full]826[/ATTACH]
given area of the shaded triangle which height is 6 units y-intercept is at (0,6) use area to find x-intercept which is the end point of the base of the triangle area=(1/2)b*h 72=(1/2)b*6 72=b*3 b=72/3 b=24 x-intercept is at (24,0) find a slope: (0,6), (24,0) m=(0-6)/(24-0) m=-6/24 m=-1/4 use point slope formula to find equation of the line y-y[1]=m(x-x[1]).....m=-1/4 and (0,6) y-6=-(1/4)(x-0) y=-(1/4)x +6