@wispy bough im begging u help me PLEASE
#Composite functions
wispy bough
for gf(x) = (1+x)^2
can something squared ever be negative?
pseudo blade
idk
warped cedar
mad
wispy bough
yah
warped cedar
🥶
wispy bough
y>=0
pseudo blade
same thing
pseudo blade
oh
also did i find gf(x) correctly on the first question
cuz i just redid it and got a completely different answer
i got (x+1)^2/x
what abt the range for the second one
wispy bough
also did i find gf(x) correctly on the first question
yes
pseudo blade
i got (x+1)^2/x
is it this or the one i typed on the screenshot 😭
wispy bough
what abt the range for the second one
complete the square
wispy bough
is it this or the one i typed on the screenshot 😭
the screenshot
pseudo blade
i cant complete the square if A is not equal to 1
wispy bough
1/1/(x+1)^2
wispy bough
i cant complete the square if A is not equal to 1
factor out
wispy bough
so if you just factor out 4 first then
fg(x) = 4(x^2-3x) + 9
fg(x) = 4(x-3/2)^2 - 9 +9
fg(x) = 4(x-3/2)^2
wispy bough
don't use the 9 in the factorisation since you have to pull it out at the end anyways
wispy bough
now imi still confused
it's just taking out a factor of 4 and completing the square as normal
warped cedar
so if you just factor out 4 first then
fg(x) = 4(x^2-3x) + 9
fg(x) = 4(x-3/2)^2 ...
do the square as (2x+...)^2 🤓
wispy bough
crazy
wispy bough
do the square as (2x+...)^2 🤓
nerd
pseudo blade
shut up i cant complete tthe square when a is not 1
😭
what abt gf(x) on second q
how do i find the range of that
wispy bough
on 2x^2 -3 ?
pseudo blade
yh
wispy bough
anything squared is greater than or equal to 0
anything squared -3 is greater than or equal to -3
pseudo blade
huh
pseudo blade
so that means the range is -3 <= y <= 0?
wispy bough
no
wispy bough
yes
pseudo blade
oh