Question

Find a equation of the line containing the given pair of points. (3,5) and (9,8)

Answer 1

slope = rise/run = (8-5)/(9-3) = 3/6 = 1/2

$y = .5x + b \\ 5 = .5(3) + b \\ b = 3.5 \\ y = .5x + 3.5$