equation of a line problem with solution

Sagot :

i have one example here                                                                                      1. Find the equation of the line which passes through the points (5,1) and has a slope of .5. In this case the slope and one set of coordinates are known.  This case involves the use of the point-slope formula.            The point-slope formula             y    =  y+ b (x - x1)             y    =  1  +  .5(x-5)             y    =  1  + .5x – 2.5             y    =  -1.5 + .5x