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November 08, 2025, 05:32:08 am

Author Topic: Weird question  (Read 733 times)  Share 

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khalil

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Weird question
« on: August 22, 2009, 10:29:46 pm »
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The straight line y=x+3 cuts the parabola y=x^2-2x+3 at the point (3,0). The angle between the line and the parabola at this point delta, where tan delta:

This question is weird. They dont even intersect at that point.

qshyrn

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Re: Weird question
« Reply #1 on: August 22, 2009, 10:43:05 pm »
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the eqs intersect, but not at (3,0)
they intersect at (3,6) and (0,3)
« Last Edit: August 22, 2009, 10:45:36 pm by qshyrn »

hyperblade01

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Re: Weird question
« Reply #2 on: August 22, 2009, 11:14:58 pm »
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I had a similar one with e^x and a straight line - in chapter 13 essentials if you wanna look :P

Just assume they intersect at that point and find their gradients
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Re: Weird question
« Reply #3 on: August 22, 2009, 11:39:44 pm »
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It was probably a typo, they probably meant (0,3)

khalil

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Re: Weird question
« Reply #4 on: August 23, 2009, 05:53:02 am »
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But then why did they do it twice, Q 31 and this one