slope stuff

[Jeffy]

Find the slope of the line tangent to the graph of the function at the given value of x.

y = -8x^-1 + 5x^-2; x = 2


when I did this I got 13/4
is this right?

-Jeff

 

[stapel]

when I did this I got 13/4
is this right?

I'm getting something else. Please reply showing your work.

Thank you.

Eliz.

 

[Jeffy]

my finger is broke -3/4

 

[stapel]

my finger is broke -3/4

I frequently have the same problem. :wink:

Check your signs. I could be wrong, of course, but I'm getting 2 - 5/4 = +3/4.

Thank you.

Eliz.