If m is the slope of the curve and m2 is the slope of the curve , then at a point of intersection of the two curves:
- (A) m1 = m2
- (B) m1= -m2
- (C) m1*m2 = 1
- (D) m1*m2 = -1
- (E) m1*m2 = -2
I think I might be doing it wrong... >_<
First, I found the derivative of the first one explicitly.
which is:
And then, the derivative of the second one implicitly:
which is:
But I can't see a relationship between the two slopes...?