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What do I have to do for this question? (C1 Maths)

image 6.jpg

Any help greatly appreciated!
Reply 1
Avatar for Notnek
Notnek
21
Original post by honour
image 6.jpg

Any help greatly appreciated!

Is that your working on the image? It's not correct.

A quadratic with turning point (b,c)(b,c) has equation

a(x−b)2+ca(x-b)^2 + c

Can you use this to find the equation of the curve? Post your working/thoughts if you get stuck.
(edited 7 years ago)
Original post by honour
image 6.jpg

Any help greatly appreciated!


Construct the equation of the parabola; y=f(x)y=f(x)

Construct the equation of the line; y=g(x)y=g(x)

Equate f(x)=g(x)f(x)=g(x) to find the x-coordinates where the two functions share the same y-value. Get the two x-values and plug them through your original quadratic or line equation to the y-coordinates.
Reply 3
Avatar for frostfly
frostfly
OP
20
Original post by notnek
Is that your working on the image? It's not correct.

A quadratic with turning point (b,c)(b,c) has equation

a(x−b)2+ca(x-b)^2 + c

Can you use this to find the equation of the curve? Post your working/thoughts if you get stuck.


Thank you Mike! :smile:
Original post by honour
image 6.jpg

Any help greatly appreciated!

IMG_0827.JPG
This is what I got. Did you get the same?
Reply 5
Avatar for frostfly
frostfly
OP
20
Original post by aliasanoynmous
IMG_0827.JPG
This is what I got. Did you get the same?


Yep. :smile:
Thanks for reviving my old thread, btw :yy:

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