Question

Simplify f(x) = 2x^2+3x+1/2x+1 Using complete sentences, explain why f(1) = 2, f(0) = 1, and f(-1) = 0, yet f(-1/2) is undefined. Make sure to show your work

Answer 1

http://openstudy.com/study#/updates/4f68b96de4b0f81dfbb596eb

Answer 2

lol i always laugh when i read a question that asks to write in sentences for math xD

Answer 3

u there? @forever.grace

Answer 4

why do you laugh?

Answer 5

cause math is about calculating and not right sentences lol

Answer 6

oh very true..

Answer 7

well to ur question :)

Answer 8

huh?

Answer 9

lol u wanted help with the post question right?
isnt that y u post it ;)

Answer 10

oh yea lol.

Answer 11

haha it's ok im fun to talk to :P

Answer 12

f(x) = 2x^2+3x+1/2x+1

Answer 13

lol okay?

Answer 14

f(x) = 2x^2+3x+1/2x+1
f(x) = (2x + 1)(x +1)/2x+1
f(x) = x +1
now isnt that easier to look at :P

Answer 15

understand wat i did? :)

Answer 16

yea i think so.

Answer 17

2x^2+3x+1 = ( 2x + 1 ) ( x + 1 )
and since \[\frac{ ( 2x + 1 ) ( x + 1 )}{ 2x+1 }\]

Answer 18

the 2x + 1 cancel out and ur left with x+1, is that better?

Answer 19

much better.

Answer 20

cool :)

Answer 21

therefore
f(x) = x + 1

Answer 22

f(1) = (1) + 1
f(1) = 2

Answer 23

thank you :)

Answer 24

well we havnt finished the question yet so dont thank me yet :P

Answer 25

ohh lol

Answer 26

haha

Answer 27

also u need to put everything i just did in words :P

Answer 28

okay

Answer 29

now u show that f(0) =1

Answer 30

is that it?

Answer 31

f(-1/2) is undefined because you can't divide by zero and 2x+1 is zero for x=-1/2.