Respuesta :

Start with

[tex]f(x)=2x[/tex]

Reflecting across the y axis means to swap x with -x, so you have

[tex]f(x)=2(-x)=-2x[/tex]

Translating up 5 units means to add 5 to the function, so you have

[tex]f(x)=-2x+5[/tex]