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Mathematics 14 Online
OpenStudy (anonymous):

PLEASE HELP!!! Which statement describes the translation of y = −1/2(x − 2)^2 − 2 from standard position? A. Moved up and to the right B. Moved up and to the left C. Moved down and to the left D. Moved down and to the right

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

which one do you think it is?

OpenStudy (anonymous):

I'm not sure

jimthompson5910 (jim_thompson5910):

hint: look at the general form a(x-h)^2 + k

jimthompson5910 (jim_thompson5910):

the (h,k) tells us where the vertex is

OpenStudy (anonymous):

would it be down and to the left?

jimthompson5910 (jim_thompson5910):

definitely down

jimthompson5910 (jim_thompson5910):

but the x-2 means we 2 units to the right

OpenStudy (anonymous):

oh

jimthompson5910 (jim_thompson5910):

it's probably counterintuitive, but it's the opposite x-2 means 2 right x+2 means 2 left

jimthompson5910 (jim_thompson5910):

it's the opposite because of the x-h it's the opposite of whatever h is

jimthompson5910 (jim_thompson5910):

IF it were x+h then you'd be right

OpenStudy (anonymous):

okay, so the answer is down and to the right, or D, right?

jimthompson5910 (jim_thompson5910):

yeah

OpenStudy (anonymous):

thanks :)

jimthompson5910 (jim_thompson5910):

np

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