If A is (-4,3) and B is (-6,-5) what is the length of AB, the slope of it and the midpoint?

Question

jim766 · Answer

length   
$$\sqrt{(x-x)^2+(y-y)^2}$$

slope
$$\frac{ y2-y1 }{ x2-x1 }=m$$

mid point

add the x's and divide by 2,  add the y's and divide by 2

anonymous · Answer

Do you agree that the length is 4 root 13, the slope is 8/9 and the midpoint is (1,-1)?

anonymous · Answer

or is the slope negative 2/5?

jim766 · Answer

$$\sqrt{(-4- - 6)^2+(3- -5)^2}$$
$$\sqrt{(2)^2+(8)^2}$$

jim766 · Answer

$$\sqrt{68}$$

anonymous · Answer

so 2 root 17 for the length?

jim766 · Answer

slope 
-5 -3         -8
-----    =  ---   = 4
-6 - - 4      -2

jim766 · Answer

right  2 root 17

anonymous · Answer

what about the midpoint?

jim766 · Answer

mid point 
-4   3
-6  -5
------
-10   -2
  --    --
   2      2

-5, -1    mp

anonymous · Answer

Thank you very much Jim, I appreciate all the help

jim766 · Answer

yw