Use the image to answer the question.
Point upper Y and a line are graphed on a coordinate plane. The x- and y-axes range from negative 6 to 6 in increments of 1. Point upper Y has coordinates left parenthesis 4 comma 3 right parenthesis. The line is solid and follows y equals 1.
Point Y(4,3)
is reflected across horizontal line y=1
. What will be the coordinates of Y′
?
(1 point)
Y(4,3)→Y′
(
,
)
Y'(4, -1)
To reflect a point across a horizontal line, we keep the x-coordinate the same and change the sign of the y-coordinate.
Therefore, the coordinates of Y' will be (4, -3).