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# Maths as question help? watch

1. Hi could somebody help me with 6a and 6b. Thanks

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2. What have you tried so far.
3. Ok so I'v worked out the x and y intercepts. It's just the turning point I need advice with now for a and I'm stuck on b

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4. Remember that the curve is symmetrical for a quadratic. Does that help you find the x coordinate of the turning point, considering you already know the roots?
5. So would this find me the x coordinate of the turning but how would I find y. Do I use the completing the square method?

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6. (Original post by TSRralph)
So would this find me the x coordinate of the turning but how would I find y. Do I use the completing the square method?

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Yes complete the square. Or you could differentiate to find the x coordinates of the turning point and then use that to find they coordinate but complete the square I'd say.
7. Well no you would simply sub in the X value you have found to find y

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