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anonymous
 5 years ago
Differentiation: The two tangents to the curve y=x^2 at the points where y=9 intersect at the point P. Find the coordinates of P.
anonymous
 5 years ago
Differentiation: The two tangents to the curve y=x^2 at the points where y=9 intersect at the point P. Find the coordinates of P.

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myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0this is what I think: if y=9, then 9=x^2 implies x=3 and x=3 the slope of the tangent line at x=3 and x=3 can be found by finding the derivative. If you write both equations of each line, you should get that they intersect the yaxis at the same point which is (0,9)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wow, i was confused about what the question was asking for and now it makes complete sense.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so i got the equations y=6x9 and y=6x9. how do i solve for the intersecting point?

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0well look at the yintercepts of each line

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0for future problems, how would i find the intercept if the linear equations didn't have the same yintercept?

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0the yintercepts are the same so they intersect at (0,9)

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0set them equal to each other. my computer is going slow

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0before you crash, know i'm thankful haha

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0lol i can try to make a problem like this where the y intercepts are not the same
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