Question

If the line tangent to the graph of the function f at the point (1,7) passes through the point (-2, -2), then f'(1) is?

Answer 1

smurf - use the points to find slope of the line = f'(1)!!!

Answer 2

what is the formula for tha?t

Answer 3

your doing derivatives and don't know how to find slope?
rise over run....
(y2-y1)/(x2-x1) <--lazy subscripts here... Come on Smurf, you know this stuff!

Answer 4

well its been a while. im doing a review for stuff i learned last year