OpenStudy (anonymous):

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

5 years ago
OpenStudy (anonymous):

5 years ago
OpenStudy (amistre64):

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

5 years ago
OpenStudy (anonymous):

so A?

5 years ago
OpenStudy (anonymous):

3, -1

5 years ago
OpenStudy (anonymous):

I mean C

5 years ago
OpenStudy (amistre64):

what are the coordinates for the point D?

5 years ago
OpenStudy (anonymous):

-3 - 1 is the corret answer

5 years ago
OpenStudy (anonymous):

right?

5 years ago
OpenStudy (anonymous):

cuz it flips

5 years ago
OpenStudy (amistre64):

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

5 years ago
OpenStudy (amistre64):

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

5 years ago
OpenStudy (anonymous):

coordinates of D are 3, 0

5 years ago
OpenStudy (anonymous):

idk ugh

5 years ago
OpenStudy (amistre64):

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

5 years ago
OpenStudy (amistre64):

im thinking C is correct

5 years ago
OpenStudy (amistre64):

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

5 years ago
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