<span>draw a straight line through those points. that's your line of reflection. now you have only to figure out which of those equations corresponds to it. So it y=x</span>
belt is 0.86 less than jacket b=j-0.86 add 0.86 to both sides b+0.86=j sub b+b+0.86=82.78 2b+0.86=82.78 minus 0.86 from both sides 2b=81.92 divid both sides by 2 b=40.96