Mathematics
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OpenStudy (anonymous):
.
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OpenStudy (anonymous):
@LynFran
OpenStudy (anonymous):
ask her she awesome
OpenStudy (anonymous):
you got any idea?
Vocaloid (vocaloid):
[f(1)-f(0)]/(1-0)
OpenStudy (anonymous):
what do i do next?
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Vocaloid (vocaloid):
[f(1)-f(0)]/(1-0)
f(1) = ?
OpenStudy (anonymous):
im not sure i think its 0?
Vocaloid (vocaloid):
when x = 1, what is f(x)?
OpenStudy (anonymous):
okay doing it now hold on
OpenStudy (anonymous):
first term is -4, correct?
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OpenStudy (anonymous):
ten +12, right?
OpenStudy (anonymous):
then^
Vocaloid (vocaloid):
not 12
what is 4x^3 when x = 1?
OpenStudy (anonymous):
oh +4
Vocaloid (vocaloid):
right, keep going
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OpenStudy (anonymous):
-4
Vocaloid (vocaloid):
nope, not -4
what is -2x^2 when x = 1?
OpenStudy (anonymous):
-2
OpenStudy (anonymous):
+2
Vocaloid (vocaloid):
it's -2
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Vocaloid (vocaloid):
now keep going
OpenStudy (anonymous):
So it equals 0?
Vocaloid (vocaloid):
you're not finished with the problem left
you still have + x + 1 left
OpenStudy (anonymous):
so it equals 2?
Vocaloid (vocaloid):
-1+4-2+1+1 = ?
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OpenStudy (anonymous):
thats not an answer choice?
Vocaloid (vocaloid):
right, f(1) = 3, but we're not done with the problem yet
now we need to find f(0)
OpenStudy (anonymous):
so what do we do now?
Vocaloid (vocaloid):
find f(0)
OpenStudy (anonymous):
how?
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Vocaloid (vocaloid):
what is the value of f(x) when x = 0?
OpenStudy (anonymous):
1?
Vocaloid (vocaloid):
yes
so, f(1) = 3 and f(0) = 1
now let's go back to the formula I posted at the beginning
[f(1)-f(0)]/(1-0) = ?
OpenStudy (anonymous):
2?
Vocaloid (vocaloid):
yup! we're done
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OpenStudy (anonymous):
3-1 =2/1=2?
OpenStudy (anonymous):
okay thanks SO much!