Question 256522
My problem is m=7,(4,1) I tied to solve a similar one which was 
m=8,(7,5) and here is what I did. 
y-5=m(x-x1)
y-5=(8)(x-x1)
y-5=(8)(x-(7)
----------------- Why did you change to +7 ?
y-5 = 8(x-7)
y-5 = 8x-56
y = 8x-51
------------
y-5=8(x+7)  This was -7 ?
y-5=8x-14 Where did you get 14 ?
y=8x-9