slope of (-2,5) and (4.-4)

You are correct Mellie, though I recommend that in your first line that has numbers in you use brackets to ensure there is no confusion.

 

i.e. (-4-5)/(4--2)  is preferable to -4-5/4--2

.

I belive the answer is -1.5

this site can explane it better than me https://www.mathsisfun.com/algebra/line-equation-point-slope.html

Formula:

Delta(change in) y/Delta (change in) x=m

 

-4-5/4--2=m

-9/6=m

-3/2=m. 

Hopefully this is correct.

Hi Mellie,

Alan's suggestion is not just preferable it is totally necessary. :)

-4-5/4--2

=-4-5/4+2

=-4-1.25+2

=-3.25