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Mathematics 9 Online
OpenStudy (anonymous):

MEDAL!!! Which of the following equations will have the steepest parabola? −2.5(x + 2)^2 = y + 3 2(x − 1)^2 = y + 3 1.5x^2 = y − 1 −(x + 2)^2 = y

OpenStudy (anonymous):

@jdoe0001 how about help on this one?

OpenStudy (camerondoherty):

well all u gotta do is graph em

OpenStudy (anonymous):

i was looking for a shortcut....graphing them will take up a lot of time

OpenStudy (camerondoherty):

This is the first one : http://prntscr.com/413slo this is the secnd one: http://prntscr.com/413sv5 This is the third one: http://prntscr.com/413t5u This is the fourth one: http://prntscr.com/413tgr Now tell me which one is steepest?

OpenStudy (anonymous):

the first one?

OpenStudy (camerondoherty):

yup do you know why?

OpenStudy (anonymous):

but i don't get it...does the 3rd option have the smallest scale factor of 1.5 so why is it not the ans

OpenStudy (camerondoherty):

The steepnes is determined by the constant A in Ax² + B x +C. The larger that | A | the width shrinks (steepness increases) for |A| < 1 the width increases. More Flat

OpenStudy (camerondoherty):

no thats not true -2.5 is greater than 1.5?

OpenStudy (anonymous):

oh yeah got it thanks

OpenStudy (camerondoherty):

you're welcome :)

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