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35?

yup,35

Bingo!

what about
f(x)=x^2-4; g(x)=x+2
which is equal to (f+g)(x)

U mean Find F(F(x)+g(x)) ?

no its f(x)+g(x)
im not to sure but i think that might be it

then just add them
x^2-4+x+2 = ?

x^2+x-2?

yup

okay so what is f(x)=4x-1
g(x)=5x^2
which is equal to (fºg)(x)?

for (fog)(x) , replace 'x' in f(x) by g(x) = 5x^2

so then :
4(5x^2)-1

yup, that will be 20x^2-1

and then what is
f(x)=4x-7
g(x)=x+3
what is the function of (gºf)(4)

is it 12?

to get (gof)(x)
replace 'x' in g(x) by f(x) and then put x=4

yup, its 12

what is f(x)=5x-10
what is the value of f^-1 (-3)

so got that, its 1.4

yea

any more questions to come ?

yea

what is the vertex of the graph of f(x)=-2|x-5|+3

i think its -5, 3

+5,3

nopes, (5,3)
vertex for f(x) = p|x+a|+b
is -a,b

ohhh okay

what is the value of f(-4)
when f(x)=
-10 if x< -5
x^3 if -5≤x≤2
2x+4 if x>2

in which range does -4 lie ?

the middle one and the last one

-64

thats your answer :)

okay now this one is kinda confusing to me but i think i know the answer....

i think it is the third one, but im not too sure....

nopes, its 4th.
put these values, x=0,0.5,1,1.5,..., find g(x)
u will get it

ohhhh i get it!!! its soo confusing sometimes!

put x= 3x^2 in f(x)
2(3x^2)+5 = ?

6x^2+5?

yup.

omg you make it easier to understand hahaha

more questions ? i need to go...

yea one last one
f(x)=2/x
g(x)=|x|-1
what is the domain of (fºg)(x)

fog (x) = ?

x|x=real numbers
x|x ≠0
x|x≠0, x≠1
x|x≠-1, x≠1

f(g(x)) = 2/(|x|-1)
ok?
for which values is denominator = 0 ??

no the ones i put up last were the options

ohh okay yea! thank you! you make it easier to understand ty very much

welcome :)