It took Vaughn 3 hours to drive to his sister's house. He took the same route on the way back home, but
this time the trip took only 2.5 hours. If Vaughn drove 10 mph faster on his return trip, how fast did he
drive on his way to his sister's house?

Aline passes through the points (5,4) and (2.1). part a.) what is the slope of the line that passes through these points? show work. part b.) what is the equation of the line that passes through these points. show work. part c.) where does the line intercept on the x& y axis? show work