Answer:
C
Explanation:
Reflections are always represented by multiplying by -1, so that means its not A or B.
D would be a reflection across the x axis, since we are taking the y value and making it negative. (x, f(x)) → (x, -f(x)) .
E.g.
(3, 8) → (3, -8)
C on the other hand, keeps the y value the same, and instead makes the x value negative. (x, f(x)) → (-x, f(x)) .
E.g.
(3, 8) → (-3, 8)
This results in a reflection across the y-axis.
Answer is C