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C1 HELP (this is another question) watch

1. Outdated
2. I really want someone to explain EXACTLY (no examples, explain MY one)
how to do this question:

1: apply the following tranformations to the curves with equations y=f(x) where: i. f(x) = x^2
ii. f(x) = x^3
iii: f(x) = 1/x

in each case show both f(x) and the tranformation on the same diagram:
f) 2f(x)

ok, how do I draw i, ii, and iii?
thanks

Well the easiest way to draw these graphs is to draw a small little table

X| -3 -2 -1 0 1 2 3
Y| (-3)^3 (-2)^3 (-1)^3 0 1 8 27
-27 -8 -1

and you should have like i weird curve

and the same with 1/x

and to do the transformations the best way to learn it for yourself is to sub in the values and draw the graph then see the difference between the 2 graphs

usually you'll notice patterns like stretches and translations
3. (Original post by bull3tkid-ark)
I really want someone to explain EXACTLY (no examples, explain MY one)
how to do this question:

1: apply the following tranformations to the curves with equations y=f(x) where: i. f(x) = x^2
ii. f(x) = x^3
iii: f(x) = 1/x

in each case show both f(x) and the tranformation on the same diagram:
f) 2f(x)

ok, how do I draw i, ii, and iii?
thanks
Do you know what an x^2 graph, x^3 graph and 1/x graph look like? if not you can google it because I don't know how to draw it on here. (or I can try and fin some links if you want)
The 2 in front of the f(x) means that you need to do a stretch of 2 in the y axis. So, the x coordinates all stay exactly the same but the y coordinates need to be doubled ie (1,1) would go to (1,2) etc
Draw an x^2 graph and then on the same axis draw it with the y coordinates doubled
Then the same for part ii and iii
help at all? just ask if it still doesn't make sense
4. **** I made diagrams, but too late :<

Edit:
http://img97.imageshack.us/gal.php?g=graph1u.png

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