Question

explain what happens to y=f(x) if y=-1/2f(x)

Answer 1

any attempts/guesses ?

Answer 2

y=-\[\frac{ 1 }{ 2 }\]f(x)

Answer 3

I think it's a verticle expansion by a factor of 2

Answer 4

thats one of the 4 choices you have right ?

Answer 5

it's' not multiple choice. I'm supposed to explain what happens to y=f(x)

Answer 6

hmm.
Well, y=-1/2 f(x) would mean the height gets reflected on the x axis , and also are reduced to 1/2 .

Answer 7

I mean 1/2 of earlier height.

Answer 8

so a verticle compression by a factor of half, and it flips upside down? or rightside left?

Answer 9

you should be able to relate it from the fact that y co-ordinate becomes negative if it was positive and vice-versa if y co-ordinate was negative.

Answer 10

can you just give me the answer. it's an open-book quiz, and i have to go! thank you so much

Answer 11

no I can not just give you the answer.
and you are welcome.

Answer 12

sure you can! it's open-book. That means that we can get the answer by whatever means necessary. It's not a test...

Answer 13

I will give you 'best response'

Answer 14

lol..
:D

Answer 15

plus, i think i figured it out, just tell me if i'm right

Answer 16

it's a verticle compression by a factor of 1/2, and a reflection in the y axis