Bence9912
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Name:  rdrf.png
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Size:  52.1 KBhi, could someone help with questio 2c 3. i have factorised and got the two x values but cannot seem to draw it
for line of symetry i got -4
for vertex (-4,25)
factorising x=9 and x=-1
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Sir Cumference
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(Original post by Bence9912)
Name:  rdrf.png
Views: 85
Size:  52.1 KBhi, could someone help with questio 2c 3. i have factorised and got the two x values but cannot seem to draw it
for line of symetry i got -4
for vertex (-4,25)
factorising x=9 and x=-1
You only seem to be missing the point where it intersects the y-axis.

Do you have any ideas for this?

And why specifically are you unable to draw it?
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Bence9912
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(Original post by notnek)
You only seem to be missing the point where it intersects the y-axis.

Do you have any ideas for this?

And why specifically are you unable to draw it?
point where it intersects y is at 9
i know how to draw these but this one does not seem to work out.
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Sir Cumference
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(Original post by Bence9912)
point where it intersects y is at 9
i know how to draw these but this one does not seem to work out.
Can you explain what you mean? You seem to have all the information.

Do you what the general shape will be?

Plot all of the points you know and then draw a curve that goes through all of them.
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Bence9912
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(Original post by notnek)
Can you explain what you mean? You seem to have all the information.

Do you what the general shape will be?

Plot all of the points you know and then draw a curve that goes through all of them.
heres a little sketch i just did hopefully u can read my handwriting
Name:  IMG_5017[1].jpg
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iylianuraiman
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from the equation, we know it's a sad face (the x^2 is negative)
we know the intersections at the axes are (-9,0) (1,0) and (0,9)
and the maximum point also the line of symmetry is (-4,25)

U can sketch this curve easily now just plot all these points and join them.
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iylianuraiman
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(Original post by Bence9912)
heres a little sketch i just did hopefully u can read my handwriting
Name:  IMG_5017[1].jpg
Views: 66
Size:  501.7 KB
Ur X-Intercepts are wrong. they are the opposite sign
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Bence9912
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(Original post by iylianuraiman)
Ur X-Intercepts are wrong. they are the opposite sign
what so (4,-25)
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Sir Cumference
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(Original post by Bence9912)
Name:  rdrf.png
Views: 85
Size:  52.1 KBhi, could someone help with questio 2c 3. i have factorised and got the two x values but cannot seem to draw it
for line of symetry i got -4
for vertex (-4,25)
factorising x=9 and x=-1
I just noticed that your x values are wrong. Have another go and post your working if you get the same thing.
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Bence9912
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(Original post by iylianuraiman)
from the equation, we know it's a sad face (the x^2 is negative)
we know the intersections at the axes are (-9,0) (1,0) and (0,9)
and the maximum point also the line of symmetry is (-4,25)

U can sketch this curve easily now just plot all these points and join them.
ive been tought that you swap the sign in the bracket
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iylianuraiman
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(Original post by Bence9912)
what so (4,-25)
i said x intercept not ur maximum point. the line of symmetry is correct
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Bence9912
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(Original post by Bence9912)
ive been tought that you swap the sign in the bracket
never mind noticed my mistake
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