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The coordinates of point P on a coordinate grid are (−5, −6). Point P is reflected across the y-axis to obtain point Q and across the x-axis to obtain point R. What are the coordinates of points Q and R?

AQ(5, 6) and R(−5, −6)
BQ(−5, −6) and R(5, 6)
CQ(−5, 6) and R(5, −6)
DQ(5, −6) and R(−5, 6)

Verified Answer :

Answer: D. Q(5, −6) and R(−5, 6)


Step-by-step explanation:

We know that if point (x,y) reflected across y axis then the y coordinate remain same but the polarity of x gets change (x become negative).

\(r(x,y)\rightarrow(-x,y)\)

Similarly if point (x,y) reflected across x axis then the x coordinate remain same but the polarity of y gets change (x become negative).

\(r(x,y)\rightarrow(x,-y)\)

Given : P=(-5,-6)

Point P is reflected across the y-axis to obtain point Q , thus

\(r(-5,-6)\rightarrow(5,-6)\)

And  point P is reflected across the x-axis to obtain point R, thus

\(r(-5,-6)\rightarrow(-5,6)\)

⇒ Q=(5,-6) and R=(-5,6)

Answer:

D

Step-by-step explanation: