Tangent to the curve

Matt2007

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Aug 26, 2021
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I was struggling with this question and wasn't sure how to exactly prove that it passes through the origin but I gave it a go and was wondering if my answer was correct or if there's a better way to answer it. Any help I would greatly appreciate and be very thankful :)
maths prob2.jpgans.jpg
 
tangent line equation at the point [imath](2,e)[/imath] ...

[math]y - e = \dfrac{e}{2}( x - 2)[/math]
[math]x = 0 \implies y = 0[/math]
 
I was struggling with this question and wasn't sure how to exactly prove that it passes through the origin but I gave it a go and was wondering if my answer was correct or if there's a better way to answer it. Any help I would greatly appreciate and be very thankful :)
View attachment 28659View attachment 28660
You wrote an equation that necessarily passes through the origin, so verifying that it does proves nothing!

1630023434746.png

Did you notice that you never used the coordinates of the point of tangency?
 
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