A line passes through the points ( − 4 , 8 ) and ( 4 , 9 ) . Find an equation of the line in the form A x + B y = C where A , B , and C are integers and A > 0 .

Answer 1

(-4,8) (4,9) have a line through them

y-9 = (9-8)/(4+4)](x-4)

y = (1/8)(x-4) + 9

y = x/8 - 1/2 + 9

y = x/8 + 17/2

x/8 - y = -17/2

x - 8y = -68

A=1, B=-8, C=-68