*y*values in the graph are all going to be multiplied by 2. That's what they mean when they ask you to go from

*y*=

*f*(

*x*) to

*y*=

*2*

*f*(

*x*).

Note that you can sorta plug-in here to see what's going on. Say your original function was:

*f*(

*x*) = sin (

*x*)

Graph that. Now with that graph still on screen, graph 2

*f*(

*x*):

2

*f*(*x*) = 2[sin (*x*)]See? It doubles the

*y*values.

If you double all the

*y*values, which graph will you end up with? Choice (D).

## No comments:

## Post a Comment