Question

Let f(x)=|3x| .
Compute the limit
lim
h→0 (f(0+h)-f(0))/(h)

Answer 1

f(x)=|3x|
f(x+h) = |3(x+h)|
f(0) = 0
f(0+h) = |3(0+h)|
f(0+h) = |3h|
can you find this limit now???

Answer 2

no, it's still saying it's incorrect. Thank you though

Answer 3

\[\frac{ f(0+h)-f(0) }{ h }\] this is the format they give me

Answer 4

lim
h→0 (f(0+h)-f(0))/(h)

= lim
h→0 3h/h

= lim
h→0 3

= 3 ---> is your answer

Answer 5

yes, that's what i entered and it's still saying it's incorrect

Answer 6

so check your question may be it is wrong

Answer 7

nope, that's exactly as the question reads. i've been working on this for 45 minutes and can't get it.

Answer 8

o o i got it

Answer 9

as f(x)=|3x|

then f(0+h) = |3h|

now f(0+h) = -3h for 3h<0
and f(0+h) = 3h for 3h>0

Answer 10

I finally got it! thank you for all your help!

Answer 11

goooood