#"Known two points on a line, we can write the equation of the line as under "#
#(y-y_1) / (y_2-y_1) = (x-x_1) / (x_2 - x_1)#
#"Given : (x_1,y_1) = (1,3), (x_2, y_2) = (4,4)#
#(y - 3) / (4-3) = (x-1) / (4-1)#
#(y-3) = (x-1)/3#
#3y - 9 = x - 1#
#3y = x -1 + 9 = x + 8#
#y = (x/3) + (8/3)#
#"It's in the form ", y = mx + c' " where"#
#"Slope " m = 1/3, "y-intercept " = 8/3#