Question

f(x)=-x^4-4
if i had to plug in a -2 for the x what would i get?
i got 12. is that right?

Answer 1

\[\large f(x)=-x^4-4\]is the problem?

Answer 2

yes

Answer 3

watch thh signs\[\large f(-2)=-(-2)^4-4=-(16)-4=?\]

Answer 4

-20?

Answer 5

looks that way :D

Answer 6

did you know that (-2)^4=16 ?
or did you think it was negative?

Answer 7

i know it equals 16 but the negative sign infront of the x threw me off.

Answer 8

right-o !

Answer 9

what would it be if it was a -1 instead of a -2?

Answer 10

\[(-1)^4=(-1)(-1)(-1)(-1)=(1)(1)=1\]

Answer 11

ok i got that wrong too. i wrote -3

Answer 12

wait, so \[-1^{4}-4\]=1?

Answer 13

no, I just did the (-1)^4 part, try the rest yourself!

Answer 14

-5

Answer 15

yep, nice job :)

Answer 16

thank you!