Question

The image of the point (−7,5) in y axis has the coordinates

a) (7,5)
b) (−7, −5)

c) (−7,5)
d) (−5, 7)​

Answer 1

Solution :-

We know that, when coordinates (x,y) is reflected across the y - axis, the coordinates of the reflected point will be :-

• (-x , y) .
• The y-coordinate remains the same .
• The x-coordinate is transformed into its opposite (its sign is changed).

So, taking (-7) as x and 5 as y we get,

→ The image of the point (−7, 5) in y axis = x - coordinate changes , y remains same = (7, 5) (a) (Ans.)

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