using translation,reflection,dilations.contractions, determine the function of 3-f(4x)

Guest Nov 29, 2014

#1**+5 **

g(x)=3-f(4x)

using translation,reflection,dilations.contractions,

Well it would be contracted to one quarter its original width.

Then it would be reflected about the x axis. That is reflected about y=0

Then the whole graph would be translated upwards 3 units.

Here are a couple of examples:

https://www.desmos.com/calculator/egeybmykil

https://www.desmos.com/calculator/0r2zgjpqul

Understanding this type of thing is key to being able to draw graphs yourself.

This is how I would always free hand draw any complicated graph - I'd build it up in stages like this.

Melody
Nov 30, 2014

#1**+5 **

Best Answer

g(x)=3-f(4x)

using translation,reflection,dilations.contractions,

Well it would be contracted to one quarter its original width.

Then it would be reflected about the x axis. That is reflected about y=0

Then the whole graph would be translated upwards 3 units.

Here are a couple of examples:

https://www.desmos.com/calculator/egeybmykil

https://www.desmos.com/calculator/0r2zgjpqul

Understanding this type of thing is key to being able to draw graphs yourself.

This is how I would always free hand draw any complicated graph - I'd build it up in stages like this.

Melody
Nov 30, 2014