Hi! I'm in Pre-Calculus and we are working with functions (domain and range etc.) I'm stuck on graphing f(x)=int(2x). Could you help? :)

Question

Hi! I'm in Pre-Calculus and we are working with functions (domain and range etc.) I'm stuck on graphing f(x)=int(2x).  Could you help? :)

loser66 · Answer

Precal and int? no way , right? or f( x) = sin (2x)?

anonymous · Answer

Well it is chapter 2 and  we are doing int....i guess.  But I don't know what that means.  Are we like really behind? :(

loser66 · Answer

to me, int is integral which I was taught near end of calculus1 course. At precal, I just studied sin , cos, .... (trigs) only

anonymous · Answer

oh :) my teacher said something about integrals and he tried to explain it but it made no sense because i've never seen it before.  I took an Algebra II/Trig class last year and we covered a lot of pre-calc in it, but never integrals.

loser66 · Answer

you didn't study int yet, how can you sketch that graph? Although it 's quite simple, but if you don't know how to take int (2x) dx , I  don't know how to say.....

loser66 · Answer

ok, pretend as if you know it. hehehe. Pretend as if what I say make a perfect sense to you ( I am a liar!!) $\int 2xdx = x^2 + C$ so f(x)= $x^2 +C$ are the family graph of parabola

anonymous · Answer

ok......:) I'm following you (very slowly)

loser66 · Answer

whose vertex is on the y axis. if |dw:1379905807127:dw|