Question

Please help! Using a graph to find the value of each limit (please look at attachment in comments)

Answer 1

What do you think?

Answer 2

I have a feeling it's just -1

Answer 3

what does f(x) approach to when x approaches to -1?

Answer 4

yep. -1

Answer 5

Ah! Easy peasy! :)

Answer 6

Thank you!!

Answer 7

no problem

Answer 8

@geerky42 Really quick if you have time, using the same graph, if the limit was approaching 1, would it also be just one? (just asking because of the dot above the 1 on the graph)

Answer 9

i know im probably asking a dumb question but does that open point have anything to do with the answer

Answer 10

yeah, it is 1 because f(x) approaches to 1 when x approaches to 1. doesnt matter what f(1) is.

Answer 11

ok awesome! So like @sweetburger said, the dot above the one doesn't really have anything to do with these questions?

Answer 12

It is from early calculus, something you haven't learn @sweetburger (you havent took calculus, right?)

Answer 13

yea that's what i'm confused about

Answer 14

no geerky42 i just finished precalc

Answer 15

@geerky42 if I post another one of these questions here do you think you could help me out also? I'm just a bit confused on them :P

Answer 16

sure

Answer 17

really excited for Calc 1 though taking at my local uni pretty glad i scored into it

Answer 18

both question, i think you can handle it haha

Answer 19

for the second I think it's just 3 and then for the first I'm confused on because theres no dot by -1

Answer 20

it says when x approaches positive 1

Answer 21

it's a negative...

Answer 22

none. for 23, what does f(x) approach to when x approach to 3?

Answer 23

but no when x approaches 3 its not y=3

Answer 24

where negative?

Answer 25

#21 is a negative

Answer 26

And when f(x) approaches 3 it's just 3 isnt it?

Answer 27

what I see is "\(x \rightarrow 1\)"

Answer 28

^same

Answer 29

oh gosh im sorry duh

Answer 30

3? how is it 3?

Answer 31

for when x--->3 look at the corresponding y value

Answer 32

on my copy i have printed out the x isn't there so it just looks like -1

Answer 33

is it 2?

Answer 34

yep

Answer 35

*applause*

Answer 36

HALLELUJIA!!! I UNDERSTAND IT NOW!!

Answer 37

THANK YOU!! THANK YOU ALL! <3

Answer 38

glad to hear it :)

Answer 39

when it asks you for \(\large \displaystyle \lim_{x\rightarrow3} f(x)\), it doesnt mean f(3)

Answer 40

oh well, glad we helped

Answer 41

Thank you soooo much!!!

Answer 42

Both of you! xoxoxoxoxoxox