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Mathematics 7 Online
OpenStudy (anonymous):

what is the vertex of -|3x-3|+5

OpenStudy (anonymous):

14

OpenStudy (anonymous):

how so?

OpenStudy (anonymous):

what does vertex mean?

OpenStudy (anonymous):

-3x-3 +5 9+5 14

OpenStudy (anonymous):

he's wrong, it's actually (1,5)

OpenStudy (anonymous):

oh, sorry :/

OpenStudy (anonymous):

how is it (1,5)

OpenStudy (anonymous):

the vertex is the min/max of a function, where it maxes out

OpenStudy (anonymous):

just solve the part inside the absolute value for 0

OpenStudy (anonymous):

OH so okay it would be like

OpenStudy (anonymous):

so 3x-3=0

OpenStudy (anonymous):

3x=3

OpenStudy (anonymous):

-3|x-1|+5

OpenStudy (anonymous):

x=1

OpenStudy (anonymous):

yeah

OpenStudy (anonymous):

so wouldn't it be (-1,5)?

OpenStudy (anonymous):

then substitute that back into the original equation

OpenStudy (anonymous):

almost, but solve x-1=0

OpenStudy (anonymous):

x=1, not -1

OpenStudy (anonymous):

oh you're right

OpenStudy (anonymous):

get it?

OpenStudy (anonymous):

mate I gotta roll, pm me if you have questions

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