can someone explain to me why this is wrong

[fast jasper]

pls

[junior river]

which one

[fast jasper]

the domain is f(x)any real number except 4 and 5 and g(x) the domain is any real number except 3 and 4

i want to see what i did wrong

it keeps telling me its wrong when i check it

[junior river]

for b) ?

b) should be 4 and 3

[fast jasper]

why?

[junior river]

you have switched the answers from b and c

[fast jasper]

nvm

yea i got mixed up

[junior river]

f(x) / g(x)

solve for the zeros of g(x)

the zeros for g(x) are 3 and 4

[fast jasper]

for a is it correc

t

[junior river]

ye i guess so

[fast jasper]

wait

[junior river]

you can choose any x value without it being undefined

[fast jasper]

i dont think i mixed up

bc if we add 5 in f(x)

=0

[junior river]

huh

[fast jasper]

5^2-9(5)+20=0

[junior river]

yes

and?

[fast jasper]

so for b) it would be 5

and 4

[junior river]

no

you cannot divide by 0

but you can divide 0 by anything

[fast jasper]

wait can i ask a quick question

[junior river]

so 0/x is ok but x/0 is not ok

[fast jasper]

i know that it cant be 4 or 5

is that what the domain is

or is the domain any real number

[junior river]

look

what is the domain

the domain is all the x values the function is defined at

[fast jasper]

ok

[junior river]

any number divided by 0 is not defined

[fast jasper]

so in this case the domain is any real number

[junior river]

but 0 divided by any real number is 0

[fast jasper]

except 4 and 5

[junior river]

you set 5 into f(x) you get 0

0 / g(x) is ok because g(5) is not 0

[fast jasper]

oh

i see where i messed up

[junior river]

however g(3) is 0 so f(3) / 0 is not ok

[fast jasper]

i was thinking the upper of the fraction =0 would mean its undifined but its the lower part

[junior river]

yes

[fast jasper]

so i basically just switch b and c

[junior river]

yes

[fast jasper]

its still giving me an error

[junior river]

have you set 3, 4 for b)

[fast jasper]

nvm

it was right

for a i had to change the infinity signs

[junior river]

yes idk why you changed it

it was good the first time

[junior river]

here

[fast jasper]

• is always on the left on infinite right

btw tysm you have no idea how easy you made it for me