# sketching a function

• Sep 14th 2009, 04:40 PM
captain_jonno
sketching a function
Hi, been a little while since ive done some math, and need help with a probably basic problem.

It asks to sketch p=(1+x)^2 & p=1+2x for -1<x<1
i would assume the first one is just like the parabola x^2 shifted to the left 1 unit. but with the restricted domain when i pop it in my graphic calc to check it looks bizarre. So, what does it look like?

Thanks
• Sep 14th 2009, 06:57 PM
skeeter
Quote:

Originally Posted by captain_jonno
Hi, been a little while since ive done some math, and need help with a probably basic problem.

It asks to sketch p=(1+x)^2 & p=1+2x for -1<x<1
i would assume the first one is just like the parabola x^2 shifted to the left 1 unit. but with the restricted domain when i pop it in my graphic calc to check it looks bizarre. So, what does it look like?

Thanks

graph of both attached. domain restricted -1 < x < 1 ...
• Sep 14th 2009, 07:13 PM
captain_jonno
Hi, thanks thats great! could you remind me, what steps in order to get this?

Also, there is a follow up question asking what range of values of v is the second function good within 5%? and you have to be accurate with a calc.. hmm