Write the equation of the line that passes through the points ( 4 , 8 ) (4,8) and ( 5 , − 1 ) (5,−1). Put your answer in fully simplified point-slope form, unless it is a vertical or horizontal line

Answer 1

(4,8) and (5,-1)

have a line through them

with slope = rise over run = change in y over change in x = (8+1)/(4-5) = -9

y-y1 = m(x-x1) where m=-9, x1 =5, y1=-1

y- -1 = -9(x-5)

y+1 = -9(x-5) in point slope form