Question

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Answer 1

@Michele_Laino

Answer 2

the domain will be all values of x except the value which makes the denominator of the fraction ( x +1) = 0.

Answer 3

what values is that?

Answer 4

0

Answer 5

no - what value of x makes x+ 1 = 0?

Answer 6

-1

Answer 7

right

Answer 8

ok

Answer 9

\[{x \in R : x =\neq -1}\]

Answer 10

thats the answer ?

Answer 11

thats the domain

Answer 12

okay how do we find the range

Answer 13

well the value of the function cannot be - 8 so its all real values of y except -8

Answer 14

so 8?

Answer 15

No ALL real numbers but not -8

Answer 16

thats the range all real numbers?

Answer 17

its written similar to the domain but put y instead of x and not equal -8 instead of not eqqqualto -1

Answer 18

-8 doesnt equal -1

Answer 19

you do not follow me
look at my 5th post

Answer 20

so the domain is also the range?

Answer 21

no
write y instead of x and -8 instead of -1 and youy have the range

Answer 22

y= -1

Answer 23

\[y \in R: y \neq-8\]

Answer 24

oh okay

Answer 25

how do we do asymptotes

Answer 26

what value of x gives no value for y?

Answer 27

we determined this already

Answer 28

-1 and -8

Answer 29

no just x = 1
thats the asymptote

Answer 30

ohh

Answer 31

the x intercept is -8 and y is -1

Answer 32

to find the y intercept just replace the x in the function by 0 and work out the value of y
to find the x intercepts just replace the y by 0 and solve for x
that is solve 10 / (x +1) - 8 = 0

Answer 33

so to find y-intercept you need to calculate
10
----- - 8
0 + 1

Answer 34

x = 1/4

Answer 35

thats correct for x-intercept

Answer 36

ok and Y?

Answer 37

now find the y -intercept

Answer 38

- i showed you in my post

Answer 39

x = -1 is the asymptote - i said x = 1 which was wrong

Answer 40

y intercept is 10 / (0+ 1) - 8

Answer 41

gotta go right now

Answer 42

how do you graph it?? ?

Answer 43

@Michele_Laino i need help im graphing it

Answer 44

we can use the graphic calculator

Answer 45

what do i put in

Answer 46

numbers 1 and 2?

Answer 47

please, enter this information:
\[y = \left[ {10/\left( {x + 1} \right)} \right] - 8\]
as I wrote

Answer 48

okay i did

Answer 49

is that it

Answer 50

please post the graph you got

Answer 51

thats right?

Answer 52

please wait....

Answer 53

ok

Answer 54

I got this:

Answer 55

please note the formula which I wrote is different from the one you wrote

Answer 56

i guess ok is that it

Answer 57

similarly for second function, please try to enter this formula:
\[y = \left[ {2/\left( {x + 6} \right)} \right] - 1\]
in the same way as I wrote

Answer 58

that's right!