Question

when a function is reflected in the y - axis, the coordinates of points (x,y) become
a) (-x,y)
b) (x,-y)
c) (-x,-y)
d) (x,y)

Explanation:

Step1: Recall reflection rule

When reflecting a point \((x,y)\) over the \(y -\)axis, the \(y -\)coordinate remains the same, and the \(x -\)coordinate changes its sign.

Step2: Apply the rule

If the original point is \((x,y)\), after reflection over the \(y -\)axis, the new point is \((-x,y)\).

Answer:

A. \((-x,y)\)