<u><em>Reflection of point U across y-axis = (1, -5)</em></u>
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)
X=5 y=1 this what i got when i worked it out on my paper. hope that helps.
Answer:
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Step-by-step explanation:
plz mark brainliest :D

the question asks us to rationalise the given expression !
so let's start ~

hope helpful :D