The Student Room Group

Core 2 Transformations Question

Hi there
I don't know how they got this answer for this 2 mark question (I understand the direction, x, just not the 2)

1219bb58148a4738a887fb7182baec15.png
Attachment not found
Reply 1
Original post by Zentox
Hi there
I don't know how they got this answer for this 2 mark question (I understand the direction, x, just not the 2)

1219bb58148a4738a887fb7182baec15.png
Attachment not found

f(x)=x3+1f(x)=\sqrt{x^3+1}

f(2x)=  ?f(2x) = \ \ ?
Reply 2
The usual way to identify this transformation is that the x in the original function has been replaced by x/2 to get the new function. Does that work in this case?
Reply 3
Original post by notnek
f(x)=x3+1f(x)=\sqrt{x^3+1}

f(2x)=  ?f(2x) = \ \ ?


That cleared it up, thanks :smile:

Quick Reply

Latest