Can someone please explain this to me??
Write an equation for the following transformation of y=x: a vertical stretch by a factor of 4

Question

Can someone please explain this to me?? 
Write an equation for the following transformation of y=x: a vertical stretch by a factor of 4

jdoe0001 · Answer

y = A ( Bx + C )  + D

A = vertical stretch

thus

if the "parent function" is $\bf y = x$
the "transformed function" is  $\bf y = \color{red}{4}x$

jdoe0001 · Answer

transformed just means, the parent function, or a basic barebones function, with PADDED  WITH EXTRA STUFF AROUND

anonymous · Answer

I just don't understand :c

jdoe0001 · Answer

a parent function is just usually a barebone variable expression

anonymous · Answer

What does that mean?... I'm sorry I'm really terrible at math, it's not my cup of tea. I do a lot better when people explain things step by step..

jdoe0001 · Answer

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