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sadiebee123
 2 years ago
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
sadiebee123
 2 years ago
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

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jdoe0001
 2 years ago
Best ResponseYou've already chosen the best response.0y = 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
 2 years ago
Best ResponseYou've already chosen the best response.0transformed just means, the parent function, or a basic barebones function, with PADDED WITH EXTRA STUFF AROUND

sadiebee123
 2 years ago
Best ResponseYou've already chosen the best response.0I just don't understand :c

jdoe0001
 2 years ago
Best ResponseYou've already chosen the best response.0a parent function is just usually a barebone variable expression

sadiebee123
 2 years ago
Best ResponseYou've already chosen the best response.0What 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
 2 years ago
Best ResponseYou've already chosen the best response.0as you PAD MORE STUFF to the written function, the graph moves about or "shifts" or "translates" about

jdoe0001
 2 years ago
Best ResponseYou've already chosen the best response.0in the case above, I use vertical and horizontal "transformation", in your case for the exercise given, you just need a vertical stretch, that means a multiplier in front of it = A ( Bx + C ) + D A = vertical stretch C = horizontal shift D = vertical shift

sadiebee123
 2 years ago
Best ResponseYou've already chosen the best response.0Oh okay, but how do I get a whole equation like that out of only y=x and 4?

jdoe0001
 2 years ago
Best ResponseYou've already chosen the best response.0hmmm,... check above, my 1st line

sadiebee123
 2 years ago
Best ResponseYou've already chosen the best response.0So I don't need all that extra C and D stuff?

jdoe0001
 2 years ago
Best ResponseYou've already chosen the best response.0right, you don't the A, B, C, D components are for transformations of different kinds, you should know about, in this case, you only needed A, or the one in front of the function

sadiebee123
 2 years ago
Best ResponseYou've already chosen the best response.0Ohh okay, I think I understand this better thank you!
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