Answer :
Reflection of point U across y-axis = (1, -5)
why . . .
reflection across y-axis means to take the negative of the x-value, and since point U has coordinates (-1, -5), the negative of -1 is 1, then the reflected coordinate must be (1, -5)
why . . .
reflection across y-axis means to take the negative of the x-value, and since point U has coordinates (-1, -5), the negative of -1 is 1, then the reflected coordinate must be (1, -5)
Answer:
B. [tex](1,-5)[/tex]
Step-by-step explanation:
We have been coordinates of some points on coordinate plane. We are asked to find the reflection image of U across the y-axis.
We know that after reflecting a point across y-axis, the y-coordinate of point remains same, while x-coordinate changes to its opposite sign.
We can see that coordinates of point U are [tex](-1,-5)[/tex]. After the reflection across y-axis the y-coordinate will remain same that is [tex]-5[/tex], while x-coordinate will be opposite of [tex]-1[/tex] that is [tex]-(-1)=1[/tex]
Therefore, the coordinates of point U after reflection across y-axis would be [tex](1,-5)[/tex] and option B is the correct choice.
