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April 24, 2024, 01:15:02 am
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Author Topic: can anyone help with these questions  (Read 11347 times)  Share 

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Sup

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Re: can anyone help with these questions
« Reply #60 on: January 16, 2014, 08:16:30 pm »
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Got another question: A parabola has the same shape as y=2x^2 but its turning point is (1, -2). Write its equation.
Thanks.
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Daenerys Targaryen

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Re: can anyone help with these questions
« Reply #61 on: January 16, 2014, 08:21:01 pm »
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Quote from: Sup on January 16, 2014, 08:16:30 pm
Got another question: A parabola has the same shape as y=2x^2 but its turning point is (1, -2). Write its equation.
Thanks.

The 'a' in the TP form: a(x-b)^2 + c
is usually the 'a' in the basic form, ax^2 + bx +c like it is in this case

Thus given the TP, we sub in b and c so that it becomes:
y=2(x-1)^2 -2
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