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

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

sadiebee123
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.0dw:1380828836174:dw

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

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

jdoe0001
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.0Ohh okay, I think I understand this better thank you!
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