Question

1.
A linear function is transformed from f(x)
to -f(x)

.
Which transformation was performed?


translation to the left

rotation around the origin

reflection across the y
-axis

reflection across the x
-axis

Answer 1

Reflection across the x-axis.

Reason: (x, f(x)) becomes (x, −f(x)), which flips the sign of the y-coordinate — a reflection across the x-axis.