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Mathematics
OpenStudy (anonymous):

In the graph below, point D is reflected across the y-axis. What are the coordinates of its image?

OpenStudy (anonymous):

OpenStudy (amistre64):

if all we do is reflect across the y axis; the only thing that changes is the sign of the x component

OpenStudy (anonymous):

so A?

OpenStudy (anonymous):

3, -1

OpenStudy (anonymous):

I mean C

OpenStudy (amistre64):

what are the coordinates for the point D?

OpenStudy (anonymous):

-3 - 1 is the corret answer

OpenStudy (anonymous):

right?

OpenStudy (anonymous):

cuz it flips

OpenStudy (amistre64):

i cant tell what the coords of D are, my eyes aint so good anymore

OpenStudy (amistre64):

but yes; the x part flips a sigh and the y parts stays the same

OpenStudy (anonymous):

coordinates of D are 3, 0

OpenStudy (anonymous):

idk ugh

OpenStudy (amistre64):

(3,y) flips over the y axis to (-3,y)

OpenStudy (amistre64):

im thinking C is correct

OpenStudy (amistre64):

(x,-y) flips to (-x,-y) so that fits the right pattern and nothing else seems to match it :)

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