- #1
DeanBH
- 82
- 0
1. The points A and b have Coords (6,-1) and (2,5) respectively
a.Show gradient is - 3/2
-1-5 = -6
6-2 = 4
= -3/2
Hence find the equation of the line AB with answer in form Ax + By = C
A B C are integers.
- now this isn't a homework question I am just doing some extra work in my own time. I have never been taught this, but when looking through past papers i have seen that it has actualy come up, can someone explain to me how exactly you do these. I have attempted it, and know the answer because i have the mark scheme, but i don't 100% understand it.
i know you use y-5 and y+1 somewhere, which is the inverse of the Y coordinates in the 2 points I am given. and i know that you somehow times the X by the gradient with those coordinates inverted but I am not sure how it works.
answer = 3x+2y = 16 can anyone explain this?
a.Show gradient is - 3/2
-1-5 = -6
6-2 = 4
= -3/2
Hence find the equation of the line AB with answer in form Ax + By = C
A B C are integers.
- now this isn't a homework question I am just doing some extra work in my own time. I have never been taught this, but when looking through past papers i have seen that it has actualy come up, can someone explain to me how exactly you do these. I have attempted it, and know the answer because i have the mark scheme, but i don't 100% understand it.
i know you use y-5 and y+1 somewhere, which is the inverse of the Y coordinates in the 2 points I am given. and i know that you somehow times the X by the gradient with those coordinates inverted but I am not sure how it works.
answer = 3x+2y = 16 can anyone explain this?