Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.


Math Forum
»
Discussions
»
Courses
»
apcalculus
Notice: We are no longer accepting new posts, but the forums will continue to be readable.
Topic:
[apcalculus] larson pg 137 exercise 69
Replies:
2
Last Post:
Oct 17, 2012 12:44 PM




[apcalculus] larson pg 137 exercise 69
Posted:
Oct 17, 2012 9:29 AM


NOTE: This apcalculus EDG will be closing in the next few weeks. Please sign up for the new AP Calculus Teacher Community Forum at https://apcommunity.collegeboard.org/gettingstarted and post messages there.  Good morning, I was working on exercise 69 from Larson early Transcendentals and am missing the key to answering the question.
Find the value of k such that the line is tangent to the graph of the function.
(function) f(x) = x^2  kx (line) y = 5x 4
the answers are x= 1, 9 but I can't seem to get that when I work out the problem. Thank you for the assistance in advance.  To search the list archives for previous posts go to http://lyris.collegeboard.com/read/?forum=apcalculus



