(adsbygoogle = window.adsbygoogle || []).push({}); [SOLVED] Parabola Help

1. The problem statement, all variables and given/known data

Click me

2. Relevant equations

Unknown

3. The attempt at a solution

I can complete a) fine, by differentiating and sticking in y value to get m for tangent then -1/m for normal (-p). Then i used (y - y1) = m (x - x1) to provide normal equation.

I have tried a few ways for b) but i always end up the normal equation - no good. The only method which gives me q in terms of p is if i make the normal equation equal the parabola equation then solve - the answer i get doesn’t look right at all, and it doesn’t leave me in a good position for c)

is there something i should know about parabola’s to be able to solve b) or is it a route i haven’t seen?

Any help would be much appreciated

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# Homework Help: Parabola Help

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