What is the domain and range of the quadratic equation y = –2x2 – 32x – 126?

just need the range please

Question

What is the domain and range of the quadratic equation y = –2x2 – 32x – 126?

just need the range please

anonymous · Answer

didnt we just do this?
the graph of this is a parabola with a maximum value of 2
you can find this maximum by either completing the square or using calculus (differentiating)

anonymous · Answer

sorry i meant What is the domain and range of the quadratic equation y = (x – 5)2 + 10?

anonymous · Answer

do you need any help on how to do this?

anonymous · Answer

no just the range

anonymous · Answer

oh ok 

the graph of this is a parabola which is 'open up' - i e y has a minimum value which is 10
so the range is y  <= 10

anonymous · Answer

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