How do you write the equation in point slope form given (4, –4) and (9, –1)?

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Answer 1 · 2017-03-09T17:11:48

#y+4=(3/5)(x-4)# or #y+1=(3/5)(x-9)#

Use your points to find the slope:

#(-1-(-4))/(9-4)=3/5#

Now use one of the points of your choice and the slope you just found. I will start with (4,-4)

#y-(-4)=(3/5)(x-4)#

Simplify:

#y+4=(3/5)(x-4)#

You can also use (9,-1)

#y-(-1)=(3/5)(x-9)#

Simplify:

#y+1=(3/5)(x-9)#