Mathematics
Point (5, 6) is reflected in a line to get the point (-5, 6). The line of reflection is :
x-axis
x = 5
y = 0
y-axis
Reflection
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Answer
We know that,
On reflection in y-axis the sign of x co-ordinate changes.
∴ Point (5, 6) is reflected in y-axis to get the point (-5, 6).
Hence, Option 4 is the correct option.
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Related Questions
(i) Plot the points A(3, 5) and B(-2, -4). Use 1 cm = 1 unit on both the axes.
(ii) A' is the image of A when reflected in the x-axis. Write down the co-ordinates of A' and plot it on the graph paper.
(iii) B' is the image of B when reflected in the y-axis, followed by reflection in the origin. Write down the co-ordinates of B' and plot it on the graph paper.
(iv) Write down the geometrical name of the figure AA'BB'.
(v) Name two invariant points under reflection in the x-axis.
The point P(5, 3) was reflected in the origin to get the image P'.
(a) Write down the co-ordinates of P'.
(b) If M is the foot of the perpendicular from P to the x-axis, find the co-ordinates of M.
(c) If N is the foot of the perpendicular from P' to the x-axis, find the co-ordinates of N.
(d) Name the figure PMP'N.
(e) Find the area of the figure PMP'N.
(i) Point A is reflected in y-axis to get point B.
(ii) Point B is reflected in origin to get point C.
(iii) Point C is reflected in y = 0 to get point P. Now, which of the following coincides with point P.
Point A
Point B
Points B and C
Points A and B
The point P(x, y) is reflected in the line y = x to point P'(x', y'), then :
x = y
y' = x'
x = x' and y = y'
x = y' and y = x'