Answer:
B
Step-by-step explanation:
The black graph is the graph of y=f(x).
The red graph is the reflection of the black graph across the y-axis.
A. [tex]y=f(x-1)[/tex] determines the translation of the graph [tex]y=f(x)[/tex] one unit to the right.
B. [tex]y=f\left(\dfrac{x}{-1}\right)[/tex] determines the reflection of the graph [tex]y=f(x)[/tex] across the y-axis.
C. [tex]y-1=f(x),\ y=f(x)+1[/tex] determines the translation of the graph [tex]y=f(x)[/tex] one unit up.
D. [tex]\dfrac{y}{-1}=f(x),\ y=-f(x)[/tex] determines the reflection of the graph [tex]y=f(x)[/tex] across the y-axis.
